NORTH IDAHO MINERAL LU, INnorthidahomineralclub.com/newsletters/August_2014.pdf3 Lake ity Rockhound...
Transcript of NORTH IDAHO MINERAL LU, INnorthidahomineralclub.com/newsletters/August_2014.pdf3 Lake ity Rockhound...
1
Meeting at LAKE CTY CENTER 1916 Lakewood Drive 667-4628
6 PM om the third Thursday of each month VISITORS WELCOME
DOWNLOAD THE NORTHWEST NEWSLETTER AT wwwamfedorgnfms
The Web Site for our club is wwwnorthidahomineralclubcom
PROGRAM FOR AUGUST 21 2014
ORIENTATION OF THE IDAHO STAR GARNET
BY LEON AGEE Gemologist and Jeweler
(if you have some garnets that you wonder about there will
be a question and answer period after the presentation)
Silent Auction and Refreshments
AUGUST 2014
All who could not make it to the picnic meeting were missed The day was a little warm
but the shelter was adequate for comfort and the food was outstanding There are sure
some good cooks in this group No official meeting was held so no minutes were taken
but Carl did present a letter he had drafted to the Fairgrounds management regarding
some of the concerns we had during our show in June Agreement was provided for this
to be sent BB Two new members joined the club at the picnicmdashLink Shadley and Mary
Merrill from Sandpoint
NORTH IDAHO MINERAL CLUB INC
2
Lake City Rockhound News Aug 2014 page 2
A process which took nature hundreds thou-
sands or perhaps millions of years to complete cannot
be covered in a few words but lets take a simplified
look at their creation
First came the raw materials-silica (silicon di-
oxide (Si02) This compound is a combination of silicon
and oxygen and is a major rock builder in the earths
crust being second only to the compound water in
abundance With silica so common gems should be
everywhere but their formation depended upon condi-
tions and this is where our story begins
About 400 million years ago the Pacific North-
west began to rise from the sea In a succession of vol-
canic upheavals a landmass rich in silica was created
Occasionally these lavas cooled so rapidly they formed
a volcanic glass-obsidian Generally however vol-
canic masses cooled slowly tended to crystallize and
were porous eventually breaking down to release min-
ute particles of silica This free silica in turn was dis-
solved by acids in percolating ground water then trans-
ported and finally deposited as concentrated liquids in
subsurface cavities Experts differ on how the liquids
eventually became solids however the following basic
silica forms were the result
Crystalline- Silica deposited in obvious crystal
forms and known as quartz or rock crystal
Opaline-Silica form similar to chalcedony but
totally noncrystalline more porous and containing small
added amounts of free water (3 t014 percent) held
within its structure rather than its chemistry Gem opals
are of this form
Cryptocrystalline-Silica deposits of microscopi-
cally fine-grained almost non-crystalline masses known
as chalcedony Chalcedony characterizes agate and
jasper
Each of the silica forms occurred within cavities
of previously formed rock and are termed secondary de-
posits How each formed however depended largely on
where it formed
Individual gemstones when found in gravel
bars or loose soil are usually a long way from their
birthplace having rolled and tumbled with the eroding
forces Generally the surface landmass of their origin
has long since crumbled and vanished Some Gems
however are still embedded where they developed and
show that each basic type resulted from its own charac-
teristic surroundings
Agate The result of chalcedony which filled
empty gas pockets or cracks in otherwise solid rock
forming as nodules or seams Since only limited
amounts of foreign materials were included the stone is
fairly pure and ranges from clear to translucent when
held to the light Not all agates formed this way with
the two exceptions being thunder eggs and fossils
Recognizing and Testing Agate The mineral
Santa Clara Valley Gem and Mineral Society
San Jose CA
world has many look-alikes but not all have gemstone
quality To avoid filling your pockets with excess rock
three simple test can be made
Luster Look for even textured non-granular
material ranging from clear (glasslike) through translu-
cent (semi-clear) to opaque (blocking out light)
Rough specimens may have a glassy waxy pearly or
even dull appearance and can be better judged when
wet Agate Waxy clear to near opaque Jasper
Waxy to dull and opaque Opal Pear-like clear to
opaque
Fracture Broken edges are usually conchoidal
(cupped shell-like fractures as on a chunk of glass)
Water-worn pebbles often show curved crescent-like
surface markings An exception to this is opal which
tends to be brittle and more angular in fracture
Hardness Part of the reason these are
termed gemstones is in their ability to polish well and
withstand abrasion They rank between 7 to 75 on
the Mohs hardness scale
Probably no gemstone is known in a greater
variety of colors and patterns than agates And like
fingerprints no two of these are ever exactly the
same Recurring agate characteristics however have
been given appropriate names such as White or Milk
Turtle-back Coated Snakeskin Blue Amethystine
Carnelian Sard Polka Dot Sunset Enhydro or Water
Agate Fortifaction Iris or Rainbow Agate Banded
Sardonyx Grape Eye or Orbicular Agate Tube or
Pipe Angel Wing Dendritic Moss Plume Flower
Sagenite and Ellensberg Blue
AGATESmdashauthor unknownmdashvia Gem Cutters News 505 via Quarry Quips 42000 via Breccia 805
3
Lake City Rockhound News Aug 2014
RULES OF THUMB From Lapidary and Shop Hints
wwwlapidaryclubcom
Contact paper makes excellent templates for cabochon cutting Simply trace design on paper cut remove backing and affix template to the
stone Although the glue is water solvent it will usually hold on long enough to effect cutting
A small sander A safety razor makes a handy sander Remove the blade and wrap a sanding paper around the curved blade holder Tuck ends
under the teeth and tighten handle Ideal for sanding small surfaces especially if they are curved
Rocks too big for your saw To cut native stones and rocks into smaller pieces needed for fireplaces entrances markers and stone fronts
saturate a rope with gasoline and tie it around the stone where the split is wanted ignite the rope andwait until the brief hot flames dies a
away Strike the stone several sharp blows with a sledge hammer following the charred mark of the burned rope The stone will part cleanly at
that point For splitting smaller or breaking off small sections in a series of splits from a larger stone an old clothesline with do USE CAUTION
Mix a tablespoon of Crisco with the same amount of Linde (or other polishing compound) and apply it to a felt polishing wheel or lap Its viscosity
prevents the powder from flinging off or traveling to the edge of the lap
SARDONYXmdashALTERNATE BIRTHSTONE FOR AUGUST via Breccia 805
Sardonyx a form of chalcedony (micro-crystalline quartz) derives its name from the multilayered bands of onyx ( white)
and sard (red-reddish brown) The best specimens are found in India but most come from Brazil It is also found in Germany
Czech Republic and Uruguay In the US it is found around Lake Superior and inOregon
A common and inexpensive stone it has often been used in place of gems in jewelry by the less wealthy It is often used for
cameos and intaglios Cameos are carved so the white layer is in relief against the colored background Intaglios are the reverse
The most famous example of a sardonyx cameo is the one with a portrait of Queen Elizabeth the First set in a gold ring she gave
to the Earl of Essex Sardonyx is one of the stones in the breast plate of the High Priest Aaron
Historically the Egyptians carved it into scarabs and beetles Often referred to as the gem of courage it is not surprising
that Roman soldiers carried pieces carved in the likeness of Mars the God of War to render themselves brave fearless and
daring Some people place it at the four corners of their home andor in the garden to prevent against crime and misfortune
In lore it has the mystical and magical properties of strength courage and protection and was often used as a charm against
warts boils cramps and the evil eye In healing lore it increases sensory perception and heals lungs and bone Sources
Peridot
Peridot is the best known gem variety of olivine a species name for a series of magnesium-iron rich silicate minerals This bright yellow-green to
green gemstone has caught the fancy of humans for thousands of years Some historians even suspect that at least some of the emeralds worn by
Cleopatra were actually peridot Much of its recent popularity can be explained by its currently being recognized as the birthstone for the month of
August people wear the stone because it is supposed to bring the wearer success peace and good luck
The United States was for many years the largest producer of peridot the value of production in 1993 was estimated to be about $15 million
according to the USBM The United States is getting major competition from China and Pakistan for the title of worlds largest producer
The earliest recorded production of peridot was in about 70 AD from St Johns Island in the Red Sea about 54 kilometers off the coast of Egypt
Most of the earliest known peridot gems came from this location and small amounts of material are still being produced from there today Later very
large fine-quality peridot was produced from deposits in Myanmar (formerly Burma) These deposits were well known for their 20- to 40-carat cut
stones of superb color and clarity but since the socialist government came to power the supply of Burmese peridot has been curtailed to
such a point as to no longer be a factor in the industry One can only guess as to whether the deposits are mined out or if government policies have
resulted in the shortage of material
Arizona--Currently the United States is the basic supplier of peridot to the world gemstone industry Deposits in Arizona are the major source of
US peridot Faceted Arizona peridot is highly prized locally but also enjoys widespread popularity for the manu- facture of birthstone and other
jewelry The bright green yellow- green to Olive-green peridot is used both as a faceted and tum- bled gem The faceted stones are used in rings
earrings pendants bracelets and as accent stones The tumbled gems can be set in baroque jewelry drilled and strung as beads used in mosa-
ics and in the manufacture of gem trees (continued on page 5)
4
By John Hausberg
Have you ever considered how large the Quartz family is How often have we heard someone say Its only a
piece of quartz If you feel so inclined you can read on and find out about this family that all rock hounds have
worked with
Crystal Quartz
Rock Crystal Herkimer diamondsArkansas diamonds Quartz Crystals
Amethyst Violet - purple colour probably due to an iron compound
Citrine Yellow probably due to iron much citrine is heat treated amethyst
Smoky Quartz (Morion if opaque and black) Smoky to smoky brown to almost black
Smoky Topaz Variety is yellowish Color due to atomic structure and apparently requires some aluminum
Rose Quartz Pale pink to deep rose-red In pegmatites usually turbid and cracked May be asteriated by needle-
like inclusions of rutile Cause of color unknown but may be manganese Very rare as crystals
Blue Quartz Usually pale masses and grains in igneous and metamorphic rocks Most blue quartz contains many
needle-like inclusions of rutile Inclusions evidently produce color
Rutilated Quartz Rutile inclusions Tourmaline chlorite and many other minerals may occur as inclusions
Fine Grained Varieties Chalcedony Fibrous microscopic structure
Iris Agate Internal structure like a diffraction grating
Agate Banded chalcedony
Onyx Dark and light banded agate used for carving cameos etc
Sard Light to dark brown chalcedony
Carnelian Red to reddish brown chalcedony
Moss Agate Chalcedony with inclusions of pigment
Agate Geode Hollow-agate lined cavity
Thunder Egg Agate filled irregular cavity in acid volcanic rocks
Chrysoprase Apple green translucent variety of chalcedony
Plasma Micro granular or micro fibrous variety of quartz in various shades of green
Prase More translucent than plasma and has a leek-green color Bloodstone Chalcedony or plasma with red spots of iron oxide
Chert Tough very compact microcrystalline quartz All colors Gem varieties are found atFlintRidgeOH
Flint Black variety of chert usually translucent Novaculite A variety of chert which may
have undergone low-grade metamorphism
Jasper Massive fine-grained quartz with large amounts of iron oxide Usually red but may be yellow to
black Usually opaque May be spherulitic
Enhydros Chalcedony with entrapped water usually with some air space
Opal Crystalline aggregate disordered internal structure contains up to 20 water Hyalite Opal Transparent and colorless
Fire Opal Internal color display
Black Opal Black color with internal fire
Jelly Opal Translucent to transparent brilliant luster orange red etc
Hydrophane A white or light colored translucent to opaque opal that becomes mostly transparent when placed
in water
Tabasheer A milky white opaline silica deposited within joints of bamboo
(Did you find a few surprises in the list I sure did the first time I read it Now when someone says Its only a piece
of quartz you can say Would you be more specific please which one of the 30 or so varieties would you say
it is If you plan to appear on Jeopardy then you had better memorize the entire list (From the SummerIFa1l 2000 edition of The Narrows News Newsletter of the Samia Rock and Fossil Club p12 via The Rockcollec-
tor via Osage Hills Gems Bartlesvkille OK
PROVERBS He who laughs last thinks slowest Everyone has a photographic memory Some just dont have film A day without sunshine is like night On the other hand you have different fingers Change is inevitable except from a vending machine
I just got lost in thought It was unfamiliar territory
When the chips are down the buffalo is empty
5
Vonnie Dillon a member of the Rock Rollers who is
an accomplished silversmith has offered to teach a
class in this art We must agree on a time (if we
want the class) but it will have to be a weekend day
as she works full time Details Time 9-5 PM
Place-Rosesrsquo shop
$75 for class and $15 for silver
All tools provided
10 x 14 or 18 x 25 mm cab (or she will
provide)
The first class should complete a simple ring or pen-
dantmdashthe majority vote will decide the projectmdash
Aim for Sept Let us have a discussion Aug 21
Officers of NIMC for 2014 as of July 1 2014
President-Dale Ruperdmdash664-2712
Vice Presidentmdashmdashmdashmdashmdashmdashmdashmdashmdash
Treasurerndash Carl Chapin 773-9049
Secretary-Diane Rosemdash659-6173
Show Chairman 2014mdashMike Burton 772-9347
Show Chairmanndash 2015mdash
Committees etc
Newsletter and Membership-Bev Bock man 773-5384
Programsmdashclub members
Federation DirectormdashBill Johnson
ldquoDelegate
ALAA Field Trips
PAINTING ON ROCKSmdashANIMALS FLOWERS ETC TO BE OFFERED BY MARILYN KOHLER She will do a class anytime so lets get
with it Lots of fun and great items for the show prizes She has most of the materials neededmdashI have some great river rocks
and all the acrylic paints and brushes are available Letrsquos talk seriously about this Diane will host the get-to-gethers in their
shop Need to schedule with Marilyn and Diane
Conrsquot from page 3
However it is estimated that 80 to 95 of the worlds production of peridot comes from the San Carlos Reservation The peridot occurs as individ-
ual grains and aggregates of grains in a basalt which is about 3 to 35 meters thick that forms the top and sides of Peridot Mesa The material is
recovered after it has weathered out of the basalt in the gullies and canyons which lead down the sides of the Mesa or it is recovered in place in
the basalt The latter method of recovery requires drilling and blasting The peridot grains that are commercially recovered are typically 6 to 13
millimeters in size Therefore the faceted stones produced from this material are generally about 1 carat in size 2 to 3 caratstones are not uncom-
mon but stones particularly flawless ones 5 carats and over are unusual Stones as large as 15 and 22 car- ats have been cut from San Carlos
peridot
On the Reservation peridot can be mined only by individual Native Americans or by individual families of Native Americans from the San Carlos
Reservation In the past the miners have not marketed the peridot directly to the gemstone industry They marketed the material in random size
lots from as small as a coffee can full to as much as a 55-gallon barrel full to local brokers or mineral dealers These local brokersdealers mayor
may not sort and grade the material but they do tend to market to the industry in uniform size lots Currently some of the large volume
miners are marketing the material directly to the industry and are also contracting for cutting services and are marketing cut stones
Currently there is no commercial production of material from any of the deposits in New Mexico but rockhounds and other mineral collectors
gather materials from these locations for their own use
For more information see httpmineralsusgsgov mineralspubscommoditygemstonessp14-95peridothtml
6
2014 ROCK amp GEM SHOWS IN WA OR ID AND MT
CONSULT wwwamfedorgnfms for show details
AUG 15-17-HATROCKHOUNDS-HERMISTON OR
NFMS ANNUAL MEETING
SEPT 13-14 CLALLAM CO GEM PORT ANGELES WA
Affiliations
THE AMERICAN FEDERATION OF MINERALOGICAL SOCIETIES
THE NORTHWEST FEDERATIKON OF MINERALOGICAL SOCIIETIES
SCRIBE
ALAA
2
Lake City Rockhound News Aug 2014 page 2
A process which took nature hundreds thou-
sands or perhaps millions of years to complete cannot
be covered in a few words but lets take a simplified
look at their creation
First came the raw materials-silica (silicon di-
oxide (Si02) This compound is a combination of silicon
and oxygen and is a major rock builder in the earths
crust being second only to the compound water in
abundance With silica so common gems should be
everywhere but their formation depended upon condi-
tions and this is where our story begins
About 400 million years ago the Pacific North-
west began to rise from the sea In a succession of vol-
canic upheavals a landmass rich in silica was created
Occasionally these lavas cooled so rapidly they formed
a volcanic glass-obsidian Generally however vol-
canic masses cooled slowly tended to crystallize and
were porous eventually breaking down to release min-
ute particles of silica This free silica in turn was dis-
solved by acids in percolating ground water then trans-
ported and finally deposited as concentrated liquids in
subsurface cavities Experts differ on how the liquids
eventually became solids however the following basic
silica forms were the result
Crystalline- Silica deposited in obvious crystal
forms and known as quartz or rock crystal
Opaline-Silica form similar to chalcedony but
totally noncrystalline more porous and containing small
added amounts of free water (3 t014 percent) held
within its structure rather than its chemistry Gem opals
are of this form
Cryptocrystalline-Silica deposits of microscopi-
cally fine-grained almost non-crystalline masses known
as chalcedony Chalcedony characterizes agate and
jasper
Each of the silica forms occurred within cavities
of previously formed rock and are termed secondary de-
posits How each formed however depended largely on
where it formed
Individual gemstones when found in gravel
bars or loose soil are usually a long way from their
birthplace having rolled and tumbled with the eroding
forces Generally the surface landmass of their origin
has long since crumbled and vanished Some Gems
however are still embedded where they developed and
show that each basic type resulted from its own charac-
teristic surroundings
Agate The result of chalcedony which filled
empty gas pockets or cracks in otherwise solid rock
forming as nodules or seams Since only limited
amounts of foreign materials were included the stone is
fairly pure and ranges from clear to translucent when
held to the light Not all agates formed this way with
the two exceptions being thunder eggs and fossils
Recognizing and Testing Agate The mineral
Santa Clara Valley Gem and Mineral Society
San Jose CA
world has many look-alikes but not all have gemstone
quality To avoid filling your pockets with excess rock
three simple test can be made
Luster Look for even textured non-granular
material ranging from clear (glasslike) through translu-
cent (semi-clear) to opaque (blocking out light)
Rough specimens may have a glassy waxy pearly or
even dull appearance and can be better judged when
wet Agate Waxy clear to near opaque Jasper
Waxy to dull and opaque Opal Pear-like clear to
opaque
Fracture Broken edges are usually conchoidal
(cupped shell-like fractures as on a chunk of glass)
Water-worn pebbles often show curved crescent-like
surface markings An exception to this is opal which
tends to be brittle and more angular in fracture
Hardness Part of the reason these are
termed gemstones is in their ability to polish well and
withstand abrasion They rank between 7 to 75 on
the Mohs hardness scale
Probably no gemstone is known in a greater
variety of colors and patterns than agates And like
fingerprints no two of these are ever exactly the
same Recurring agate characteristics however have
been given appropriate names such as White or Milk
Turtle-back Coated Snakeskin Blue Amethystine
Carnelian Sard Polka Dot Sunset Enhydro or Water
Agate Fortifaction Iris or Rainbow Agate Banded
Sardonyx Grape Eye or Orbicular Agate Tube or
Pipe Angel Wing Dendritic Moss Plume Flower
Sagenite and Ellensberg Blue
AGATESmdashauthor unknownmdashvia Gem Cutters News 505 via Quarry Quips 42000 via Breccia 805
3
Lake City Rockhound News Aug 2014
RULES OF THUMB From Lapidary and Shop Hints
wwwlapidaryclubcom
Contact paper makes excellent templates for cabochon cutting Simply trace design on paper cut remove backing and affix template to the
stone Although the glue is water solvent it will usually hold on long enough to effect cutting
A small sander A safety razor makes a handy sander Remove the blade and wrap a sanding paper around the curved blade holder Tuck ends
under the teeth and tighten handle Ideal for sanding small surfaces especially if they are curved
Rocks too big for your saw To cut native stones and rocks into smaller pieces needed for fireplaces entrances markers and stone fronts
saturate a rope with gasoline and tie it around the stone where the split is wanted ignite the rope andwait until the brief hot flames dies a
away Strike the stone several sharp blows with a sledge hammer following the charred mark of the burned rope The stone will part cleanly at
that point For splitting smaller or breaking off small sections in a series of splits from a larger stone an old clothesline with do USE CAUTION
Mix a tablespoon of Crisco with the same amount of Linde (or other polishing compound) and apply it to a felt polishing wheel or lap Its viscosity
prevents the powder from flinging off or traveling to the edge of the lap
SARDONYXmdashALTERNATE BIRTHSTONE FOR AUGUST via Breccia 805
Sardonyx a form of chalcedony (micro-crystalline quartz) derives its name from the multilayered bands of onyx ( white)
and sard (red-reddish brown) The best specimens are found in India but most come from Brazil It is also found in Germany
Czech Republic and Uruguay In the US it is found around Lake Superior and inOregon
A common and inexpensive stone it has often been used in place of gems in jewelry by the less wealthy It is often used for
cameos and intaglios Cameos are carved so the white layer is in relief against the colored background Intaglios are the reverse
The most famous example of a sardonyx cameo is the one with a portrait of Queen Elizabeth the First set in a gold ring she gave
to the Earl of Essex Sardonyx is one of the stones in the breast plate of the High Priest Aaron
Historically the Egyptians carved it into scarabs and beetles Often referred to as the gem of courage it is not surprising
that Roman soldiers carried pieces carved in the likeness of Mars the God of War to render themselves brave fearless and
daring Some people place it at the four corners of their home andor in the garden to prevent against crime and misfortune
In lore it has the mystical and magical properties of strength courage and protection and was often used as a charm against
warts boils cramps and the evil eye In healing lore it increases sensory perception and heals lungs and bone Sources
Peridot
Peridot is the best known gem variety of olivine a species name for a series of magnesium-iron rich silicate minerals This bright yellow-green to
green gemstone has caught the fancy of humans for thousands of years Some historians even suspect that at least some of the emeralds worn by
Cleopatra were actually peridot Much of its recent popularity can be explained by its currently being recognized as the birthstone for the month of
August people wear the stone because it is supposed to bring the wearer success peace and good luck
The United States was for many years the largest producer of peridot the value of production in 1993 was estimated to be about $15 million
according to the USBM The United States is getting major competition from China and Pakistan for the title of worlds largest producer
The earliest recorded production of peridot was in about 70 AD from St Johns Island in the Red Sea about 54 kilometers off the coast of Egypt
Most of the earliest known peridot gems came from this location and small amounts of material are still being produced from there today Later very
large fine-quality peridot was produced from deposits in Myanmar (formerly Burma) These deposits were well known for their 20- to 40-carat cut
stones of superb color and clarity but since the socialist government came to power the supply of Burmese peridot has been curtailed to
such a point as to no longer be a factor in the industry One can only guess as to whether the deposits are mined out or if government policies have
resulted in the shortage of material
Arizona--Currently the United States is the basic supplier of peridot to the world gemstone industry Deposits in Arizona are the major source of
US peridot Faceted Arizona peridot is highly prized locally but also enjoys widespread popularity for the manu- facture of birthstone and other
jewelry The bright green yellow- green to Olive-green peridot is used both as a faceted and tum- bled gem The faceted stones are used in rings
earrings pendants bracelets and as accent stones The tumbled gems can be set in baroque jewelry drilled and strung as beads used in mosa-
ics and in the manufacture of gem trees (continued on page 5)
4
By John Hausberg
Have you ever considered how large the Quartz family is How often have we heard someone say Its only a
piece of quartz If you feel so inclined you can read on and find out about this family that all rock hounds have
worked with
Crystal Quartz
Rock Crystal Herkimer diamondsArkansas diamonds Quartz Crystals
Amethyst Violet - purple colour probably due to an iron compound
Citrine Yellow probably due to iron much citrine is heat treated amethyst
Smoky Quartz (Morion if opaque and black) Smoky to smoky brown to almost black
Smoky Topaz Variety is yellowish Color due to atomic structure and apparently requires some aluminum
Rose Quartz Pale pink to deep rose-red In pegmatites usually turbid and cracked May be asteriated by needle-
like inclusions of rutile Cause of color unknown but may be manganese Very rare as crystals
Blue Quartz Usually pale masses and grains in igneous and metamorphic rocks Most blue quartz contains many
needle-like inclusions of rutile Inclusions evidently produce color
Rutilated Quartz Rutile inclusions Tourmaline chlorite and many other minerals may occur as inclusions
Fine Grained Varieties Chalcedony Fibrous microscopic structure
Iris Agate Internal structure like a diffraction grating
Agate Banded chalcedony
Onyx Dark and light banded agate used for carving cameos etc
Sard Light to dark brown chalcedony
Carnelian Red to reddish brown chalcedony
Moss Agate Chalcedony with inclusions of pigment
Agate Geode Hollow-agate lined cavity
Thunder Egg Agate filled irregular cavity in acid volcanic rocks
Chrysoprase Apple green translucent variety of chalcedony
Plasma Micro granular or micro fibrous variety of quartz in various shades of green
Prase More translucent than plasma and has a leek-green color Bloodstone Chalcedony or plasma with red spots of iron oxide
Chert Tough very compact microcrystalline quartz All colors Gem varieties are found atFlintRidgeOH
Flint Black variety of chert usually translucent Novaculite A variety of chert which may
have undergone low-grade metamorphism
Jasper Massive fine-grained quartz with large amounts of iron oxide Usually red but may be yellow to
black Usually opaque May be spherulitic
Enhydros Chalcedony with entrapped water usually with some air space
Opal Crystalline aggregate disordered internal structure contains up to 20 water Hyalite Opal Transparent and colorless
Fire Opal Internal color display
Black Opal Black color with internal fire
Jelly Opal Translucent to transparent brilliant luster orange red etc
Hydrophane A white or light colored translucent to opaque opal that becomes mostly transparent when placed
in water
Tabasheer A milky white opaline silica deposited within joints of bamboo
(Did you find a few surprises in the list I sure did the first time I read it Now when someone says Its only a piece
of quartz you can say Would you be more specific please which one of the 30 or so varieties would you say
it is If you plan to appear on Jeopardy then you had better memorize the entire list (From the SummerIFa1l 2000 edition of The Narrows News Newsletter of the Samia Rock and Fossil Club p12 via The Rockcollec-
tor via Osage Hills Gems Bartlesvkille OK
PROVERBS He who laughs last thinks slowest Everyone has a photographic memory Some just dont have film A day without sunshine is like night On the other hand you have different fingers Change is inevitable except from a vending machine
I just got lost in thought It was unfamiliar territory
When the chips are down the buffalo is empty
5
Vonnie Dillon a member of the Rock Rollers who is
an accomplished silversmith has offered to teach a
class in this art We must agree on a time (if we
want the class) but it will have to be a weekend day
as she works full time Details Time 9-5 PM
Place-Rosesrsquo shop
$75 for class and $15 for silver
All tools provided
10 x 14 or 18 x 25 mm cab (or she will
provide)
The first class should complete a simple ring or pen-
dantmdashthe majority vote will decide the projectmdash
Aim for Sept Let us have a discussion Aug 21
Officers of NIMC for 2014 as of July 1 2014
President-Dale Ruperdmdash664-2712
Vice Presidentmdashmdashmdashmdashmdashmdashmdashmdashmdash
Treasurerndash Carl Chapin 773-9049
Secretary-Diane Rosemdash659-6173
Show Chairman 2014mdashMike Burton 772-9347
Show Chairmanndash 2015mdash
Committees etc
Newsletter and Membership-Bev Bock man 773-5384
Programsmdashclub members
Federation DirectormdashBill Johnson
ldquoDelegate
ALAA Field Trips
PAINTING ON ROCKSmdashANIMALS FLOWERS ETC TO BE OFFERED BY MARILYN KOHLER She will do a class anytime so lets get
with it Lots of fun and great items for the show prizes She has most of the materials neededmdashI have some great river rocks
and all the acrylic paints and brushes are available Letrsquos talk seriously about this Diane will host the get-to-gethers in their
shop Need to schedule with Marilyn and Diane
Conrsquot from page 3
However it is estimated that 80 to 95 of the worlds production of peridot comes from the San Carlos Reservation The peridot occurs as individ-
ual grains and aggregates of grains in a basalt which is about 3 to 35 meters thick that forms the top and sides of Peridot Mesa The material is
recovered after it has weathered out of the basalt in the gullies and canyons which lead down the sides of the Mesa or it is recovered in place in
the basalt The latter method of recovery requires drilling and blasting The peridot grains that are commercially recovered are typically 6 to 13
millimeters in size Therefore the faceted stones produced from this material are generally about 1 carat in size 2 to 3 caratstones are not uncom-
mon but stones particularly flawless ones 5 carats and over are unusual Stones as large as 15 and 22 car- ats have been cut from San Carlos
peridot
On the Reservation peridot can be mined only by individual Native Americans or by individual families of Native Americans from the San Carlos
Reservation In the past the miners have not marketed the peridot directly to the gemstone industry They marketed the material in random size
lots from as small as a coffee can full to as much as a 55-gallon barrel full to local brokers or mineral dealers These local brokersdealers mayor
may not sort and grade the material but they do tend to market to the industry in uniform size lots Currently some of the large volume
miners are marketing the material directly to the industry and are also contracting for cutting services and are marketing cut stones
Currently there is no commercial production of material from any of the deposits in New Mexico but rockhounds and other mineral collectors
gather materials from these locations for their own use
For more information see httpmineralsusgsgov mineralspubscommoditygemstonessp14-95peridothtml
6
2014 ROCK amp GEM SHOWS IN WA OR ID AND MT
CONSULT wwwamfedorgnfms for show details
AUG 15-17-HATROCKHOUNDS-HERMISTON OR
NFMS ANNUAL MEETING
SEPT 13-14 CLALLAM CO GEM PORT ANGELES WA
Affiliations
THE AMERICAN FEDERATION OF MINERALOGICAL SOCIETIES
THE NORTHWEST FEDERATIKON OF MINERALOGICAL SOCIIETIES
SCRIBE
ALAA
3
Lake City Rockhound News Aug 2014
RULES OF THUMB From Lapidary and Shop Hints
wwwlapidaryclubcom
Contact paper makes excellent templates for cabochon cutting Simply trace design on paper cut remove backing and affix template to the
stone Although the glue is water solvent it will usually hold on long enough to effect cutting
A small sander A safety razor makes a handy sander Remove the blade and wrap a sanding paper around the curved blade holder Tuck ends
under the teeth and tighten handle Ideal for sanding small surfaces especially if they are curved
Rocks too big for your saw To cut native stones and rocks into smaller pieces needed for fireplaces entrances markers and stone fronts
saturate a rope with gasoline and tie it around the stone where the split is wanted ignite the rope andwait until the brief hot flames dies a
away Strike the stone several sharp blows with a sledge hammer following the charred mark of the burned rope The stone will part cleanly at
that point For splitting smaller or breaking off small sections in a series of splits from a larger stone an old clothesline with do USE CAUTION
Mix a tablespoon of Crisco with the same amount of Linde (or other polishing compound) and apply it to a felt polishing wheel or lap Its viscosity
prevents the powder from flinging off or traveling to the edge of the lap
SARDONYXmdashALTERNATE BIRTHSTONE FOR AUGUST via Breccia 805
Sardonyx a form of chalcedony (micro-crystalline quartz) derives its name from the multilayered bands of onyx ( white)
and sard (red-reddish brown) The best specimens are found in India but most come from Brazil It is also found in Germany
Czech Republic and Uruguay In the US it is found around Lake Superior and inOregon
A common and inexpensive stone it has often been used in place of gems in jewelry by the less wealthy It is often used for
cameos and intaglios Cameos are carved so the white layer is in relief against the colored background Intaglios are the reverse
The most famous example of a sardonyx cameo is the one with a portrait of Queen Elizabeth the First set in a gold ring she gave
to the Earl of Essex Sardonyx is one of the stones in the breast plate of the High Priest Aaron
Historically the Egyptians carved it into scarabs and beetles Often referred to as the gem of courage it is not surprising
that Roman soldiers carried pieces carved in the likeness of Mars the God of War to render themselves brave fearless and
daring Some people place it at the four corners of their home andor in the garden to prevent against crime and misfortune
In lore it has the mystical and magical properties of strength courage and protection and was often used as a charm against
warts boils cramps and the evil eye In healing lore it increases sensory perception and heals lungs and bone Sources
Peridot
Peridot is the best known gem variety of olivine a species name for a series of magnesium-iron rich silicate minerals This bright yellow-green to
green gemstone has caught the fancy of humans for thousands of years Some historians even suspect that at least some of the emeralds worn by
Cleopatra were actually peridot Much of its recent popularity can be explained by its currently being recognized as the birthstone for the month of
August people wear the stone because it is supposed to bring the wearer success peace and good luck
The United States was for many years the largest producer of peridot the value of production in 1993 was estimated to be about $15 million
according to the USBM The United States is getting major competition from China and Pakistan for the title of worlds largest producer
The earliest recorded production of peridot was in about 70 AD from St Johns Island in the Red Sea about 54 kilometers off the coast of Egypt
Most of the earliest known peridot gems came from this location and small amounts of material are still being produced from there today Later very
large fine-quality peridot was produced from deposits in Myanmar (formerly Burma) These deposits were well known for their 20- to 40-carat cut
stones of superb color and clarity but since the socialist government came to power the supply of Burmese peridot has been curtailed to
such a point as to no longer be a factor in the industry One can only guess as to whether the deposits are mined out or if government policies have
resulted in the shortage of material
Arizona--Currently the United States is the basic supplier of peridot to the world gemstone industry Deposits in Arizona are the major source of
US peridot Faceted Arizona peridot is highly prized locally but also enjoys widespread popularity for the manu- facture of birthstone and other
jewelry The bright green yellow- green to Olive-green peridot is used both as a faceted and tum- bled gem The faceted stones are used in rings
earrings pendants bracelets and as accent stones The tumbled gems can be set in baroque jewelry drilled and strung as beads used in mosa-
ics and in the manufacture of gem trees (continued on page 5)
4
By John Hausberg
Have you ever considered how large the Quartz family is How often have we heard someone say Its only a
piece of quartz If you feel so inclined you can read on and find out about this family that all rock hounds have
worked with
Crystal Quartz
Rock Crystal Herkimer diamondsArkansas diamonds Quartz Crystals
Amethyst Violet - purple colour probably due to an iron compound
Citrine Yellow probably due to iron much citrine is heat treated amethyst
Smoky Quartz (Morion if opaque and black) Smoky to smoky brown to almost black
Smoky Topaz Variety is yellowish Color due to atomic structure and apparently requires some aluminum
Rose Quartz Pale pink to deep rose-red In pegmatites usually turbid and cracked May be asteriated by needle-
like inclusions of rutile Cause of color unknown but may be manganese Very rare as crystals
Blue Quartz Usually pale masses and grains in igneous and metamorphic rocks Most blue quartz contains many
needle-like inclusions of rutile Inclusions evidently produce color
Rutilated Quartz Rutile inclusions Tourmaline chlorite and many other minerals may occur as inclusions
Fine Grained Varieties Chalcedony Fibrous microscopic structure
Iris Agate Internal structure like a diffraction grating
Agate Banded chalcedony
Onyx Dark and light banded agate used for carving cameos etc
Sard Light to dark brown chalcedony
Carnelian Red to reddish brown chalcedony
Moss Agate Chalcedony with inclusions of pigment
Agate Geode Hollow-agate lined cavity
Thunder Egg Agate filled irregular cavity in acid volcanic rocks
Chrysoprase Apple green translucent variety of chalcedony
Plasma Micro granular or micro fibrous variety of quartz in various shades of green
Prase More translucent than plasma and has a leek-green color Bloodstone Chalcedony or plasma with red spots of iron oxide
Chert Tough very compact microcrystalline quartz All colors Gem varieties are found atFlintRidgeOH
Flint Black variety of chert usually translucent Novaculite A variety of chert which may
have undergone low-grade metamorphism
Jasper Massive fine-grained quartz with large amounts of iron oxide Usually red but may be yellow to
black Usually opaque May be spherulitic
Enhydros Chalcedony with entrapped water usually with some air space
Opal Crystalline aggregate disordered internal structure contains up to 20 water Hyalite Opal Transparent and colorless
Fire Opal Internal color display
Black Opal Black color with internal fire
Jelly Opal Translucent to transparent brilliant luster orange red etc
Hydrophane A white or light colored translucent to opaque opal that becomes mostly transparent when placed
in water
Tabasheer A milky white opaline silica deposited within joints of bamboo
(Did you find a few surprises in the list I sure did the first time I read it Now when someone says Its only a piece
of quartz you can say Would you be more specific please which one of the 30 or so varieties would you say
it is If you plan to appear on Jeopardy then you had better memorize the entire list (From the SummerIFa1l 2000 edition of The Narrows News Newsletter of the Samia Rock and Fossil Club p12 via The Rockcollec-
tor via Osage Hills Gems Bartlesvkille OK
PROVERBS He who laughs last thinks slowest Everyone has a photographic memory Some just dont have film A day without sunshine is like night On the other hand you have different fingers Change is inevitable except from a vending machine
I just got lost in thought It was unfamiliar territory
When the chips are down the buffalo is empty
5
Vonnie Dillon a member of the Rock Rollers who is
an accomplished silversmith has offered to teach a
class in this art We must agree on a time (if we
want the class) but it will have to be a weekend day
as she works full time Details Time 9-5 PM
Place-Rosesrsquo shop
$75 for class and $15 for silver
All tools provided
10 x 14 or 18 x 25 mm cab (or she will
provide)
The first class should complete a simple ring or pen-
dantmdashthe majority vote will decide the projectmdash
Aim for Sept Let us have a discussion Aug 21
Officers of NIMC for 2014 as of July 1 2014
President-Dale Ruperdmdash664-2712
Vice Presidentmdashmdashmdashmdashmdashmdashmdashmdashmdash
Treasurerndash Carl Chapin 773-9049
Secretary-Diane Rosemdash659-6173
Show Chairman 2014mdashMike Burton 772-9347
Show Chairmanndash 2015mdash
Committees etc
Newsletter and Membership-Bev Bock man 773-5384
Programsmdashclub members
Federation DirectormdashBill Johnson
ldquoDelegate
ALAA Field Trips
PAINTING ON ROCKSmdashANIMALS FLOWERS ETC TO BE OFFERED BY MARILYN KOHLER She will do a class anytime so lets get
with it Lots of fun and great items for the show prizes She has most of the materials neededmdashI have some great river rocks
and all the acrylic paints and brushes are available Letrsquos talk seriously about this Diane will host the get-to-gethers in their
shop Need to schedule with Marilyn and Diane
Conrsquot from page 3
However it is estimated that 80 to 95 of the worlds production of peridot comes from the San Carlos Reservation The peridot occurs as individ-
ual grains and aggregates of grains in a basalt which is about 3 to 35 meters thick that forms the top and sides of Peridot Mesa The material is
recovered after it has weathered out of the basalt in the gullies and canyons which lead down the sides of the Mesa or it is recovered in place in
the basalt The latter method of recovery requires drilling and blasting The peridot grains that are commercially recovered are typically 6 to 13
millimeters in size Therefore the faceted stones produced from this material are generally about 1 carat in size 2 to 3 caratstones are not uncom-
mon but stones particularly flawless ones 5 carats and over are unusual Stones as large as 15 and 22 car- ats have been cut from San Carlos
peridot
On the Reservation peridot can be mined only by individual Native Americans or by individual families of Native Americans from the San Carlos
Reservation In the past the miners have not marketed the peridot directly to the gemstone industry They marketed the material in random size
lots from as small as a coffee can full to as much as a 55-gallon barrel full to local brokers or mineral dealers These local brokersdealers mayor
may not sort and grade the material but they do tend to market to the industry in uniform size lots Currently some of the large volume
miners are marketing the material directly to the industry and are also contracting for cutting services and are marketing cut stones
Currently there is no commercial production of material from any of the deposits in New Mexico but rockhounds and other mineral collectors
gather materials from these locations for their own use
For more information see httpmineralsusgsgov mineralspubscommoditygemstonessp14-95peridothtml
6
2014 ROCK amp GEM SHOWS IN WA OR ID AND MT
CONSULT wwwamfedorgnfms for show details
AUG 15-17-HATROCKHOUNDS-HERMISTON OR
NFMS ANNUAL MEETING
SEPT 13-14 CLALLAM CO GEM PORT ANGELES WA
Affiliations
THE AMERICAN FEDERATION OF MINERALOGICAL SOCIETIES
THE NORTHWEST FEDERATIKON OF MINERALOGICAL SOCIIETIES
SCRIBE
ALAA
4
By John Hausberg
Have you ever considered how large the Quartz family is How often have we heard someone say Its only a
piece of quartz If you feel so inclined you can read on and find out about this family that all rock hounds have
worked with
Crystal Quartz
Rock Crystal Herkimer diamondsArkansas diamonds Quartz Crystals
Amethyst Violet - purple colour probably due to an iron compound
Citrine Yellow probably due to iron much citrine is heat treated amethyst
Smoky Quartz (Morion if opaque and black) Smoky to smoky brown to almost black
Smoky Topaz Variety is yellowish Color due to atomic structure and apparently requires some aluminum
Rose Quartz Pale pink to deep rose-red In pegmatites usually turbid and cracked May be asteriated by needle-
like inclusions of rutile Cause of color unknown but may be manganese Very rare as crystals
Blue Quartz Usually pale masses and grains in igneous and metamorphic rocks Most blue quartz contains many
needle-like inclusions of rutile Inclusions evidently produce color
Rutilated Quartz Rutile inclusions Tourmaline chlorite and many other minerals may occur as inclusions
Fine Grained Varieties Chalcedony Fibrous microscopic structure
Iris Agate Internal structure like a diffraction grating
Agate Banded chalcedony
Onyx Dark and light banded agate used for carving cameos etc
Sard Light to dark brown chalcedony
Carnelian Red to reddish brown chalcedony
Moss Agate Chalcedony with inclusions of pigment
Agate Geode Hollow-agate lined cavity
Thunder Egg Agate filled irregular cavity in acid volcanic rocks
Chrysoprase Apple green translucent variety of chalcedony
Plasma Micro granular or micro fibrous variety of quartz in various shades of green
Prase More translucent than plasma and has a leek-green color Bloodstone Chalcedony or plasma with red spots of iron oxide
Chert Tough very compact microcrystalline quartz All colors Gem varieties are found atFlintRidgeOH
Flint Black variety of chert usually translucent Novaculite A variety of chert which may
have undergone low-grade metamorphism
Jasper Massive fine-grained quartz with large amounts of iron oxide Usually red but may be yellow to
black Usually opaque May be spherulitic
Enhydros Chalcedony with entrapped water usually with some air space
Opal Crystalline aggregate disordered internal structure contains up to 20 water Hyalite Opal Transparent and colorless
Fire Opal Internal color display
Black Opal Black color with internal fire
Jelly Opal Translucent to transparent brilliant luster orange red etc
Hydrophane A white or light colored translucent to opaque opal that becomes mostly transparent when placed
in water
Tabasheer A milky white opaline silica deposited within joints of bamboo
(Did you find a few surprises in the list I sure did the first time I read it Now when someone says Its only a piece
of quartz you can say Would you be more specific please which one of the 30 or so varieties would you say
it is If you plan to appear on Jeopardy then you had better memorize the entire list (From the SummerIFa1l 2000 edition of The Narrows News Newsletter of the Samia Rock and Fossil Club p12 via The Rockcollec-
tor via Osage Hills Gems Bartlesvkille OK
PROVERBS He who laughs last thinks slowest Everyone has a photographic memory Some just dont have film A day without sunshine is like night On the other hand you have different fingers Change is inevitable except from a vending machine
I just got lost in thought It was unfamiliar territory
When the chips are down the buffalo is empty
5
Vonnie Dillon a member of the Rock Rollers who is
an accomplished silversmith has offered to teach a
class in this art We must agree on a time (if we
want the class) but it will have to be a weekend day
as she works full time Details Time 9-5 PM
Place-Rosesrsquo shop
$75 for class and $15 for silver
All tools provided
10 x 14 or 18 x 25 mm cab (or she will
provide)
The first class should complete a simple ring or pen-
dantmdashthe majority vote will decide the projectmdash
Aim for Sept Let us have a discussion Aug 21
Officers of NIMC for 2014 as of July 1 2014
President-Dale Ruperdmdash664-2712
Vice Presidentmdashmdashmdashmdashmdashmdashmdashmdashmdash
Treasurerndash Carl Chapin 773-9049
Secretary-Diane Rosemdash659-6173
Show Chairman 2014mdashMike Burton 772-9347
Show Chairmanndash 2015mdash
Committees etc
Newsletter and Membership-Bev Bock man 773-5384
Programsmdashclub members
Federation DirectormdashBill Johnson
ldquoDelegate
ALAA Field Trips
PAINTING ON ROCKSmdashANIMALS FLOWERS ETC TO BE OFFERED BY MARILYN KOHLER She will do a class anytime so lets get
with it Lots of fun and great items for the show prizes She has most of the materials neededmdashI have some great river rocks
and all the acrylic paints and brushes are available Letrsquos talk seriously about this Diane will host the get-to-gethers in their
shop Need to schedule with Marilyn and Diane
Conrsquot from page 3
However it is estimated that 80 to 95 of the worlds production of peridot comes from the San Carlos Reservation The peridot occurs as individ-
ual grains and aggregates of grains in a basalt which is about 3 to 35 meters thick that forms the top and sides of Peridot Mesa The material is
recovered after it has weathered out of the basalt in the gullies and canyons which lead down the sides of the Mesa or it is recovered in place in
the basalt The latter method of recovery requires drilling and blasting The peridot grains that are commercially recovered are typically 6 to 13
millimeters in size Therefore the faceted stones produced from this material are generally about 1 carat in size 2 to 3 caratstones are not uncom-
mon but stones particularly flawless ones 5 carats and over are unusual Stones as large as 15 and 22 car- ats have been cut from San Carlos
peridot
On the Reservation peridot can be mined only by individual Native Americans or by individual families of Native Americans from the San Carlos
Reservation In the past the miners have not marketed the peridot directly to the gemstone industry They marketed the material in random size
lots from as small as a coffee can full to as much as a 55-gallon barrel full to local brokers or mineral dealers These local brokersdealers mayor
may not sort and grade the material but they do tend to market to the industry in uniform size lots Currently some of the large volume
miners are marketing the material directly to the industry and are also contracting for cutting services and are marketing cut stones
Currently there is no commercial production of material from any of the deposits in New Mexico but rockhounds and other mineral collectors
gather materials from these locations for their own use
For more information see httpmineralsusgsgov mineralspubscommoditygemstonessp14-95peridothtml
6
2014 ROCK amp GEM SHOWS IN WA OR ID AND MT
CONSULT wwwamfedorgnfms for show details
AUG 15-17-HATROCKHOUNDS-HERMISTON OR
NFMS ANNUAL MEETING
SEPT 13-14 CLALLAM CO GEM PORT ANGELES WA
Affiliations
THE AMERICAN FEDERATION OF MINERALOGICAL SOCIETIES
THE NORTHWEST FEDERATIKON OF MINERALOGICAL SOCIIETIES
SCRIBE
ALAA
5
Vonnie Dillon a member of the Rock Rollers who is
an accomplished silversmith has offered to teach a
class in this art We must agree on a time (if we
want the class) but it will have to be a weekend day
as she works full time Details Time 9-5 PM
Place-Rosesrsquo shop
$75 for class and $15 for silver
All tools provided
10 x 14 or 18 x 25 mm cab (or she will
provide)
The first class should complete a simple ring or pen-
dantmdashthe majority vote will decide the projectmdash
Aim for Sept Let us have a discussion Aug 21
Officers of NIMC for 2014 as of July 1 2014
President-Dale Ruperdmdash664-2712
Vice Presidentmdashmdashmdashmdashmdashmdashmdashmdashmdash
Treasurerndash Carl Chapin 773-9049
Secretary-Diane Rosemdash659-6173
Show Chairman 2014mdashMike Burton 772-9347
Show Chairmanndash 2015mdash
Committees etc
Newsletter and Membership-Bev Bock man 773-5384
Programsmdashclub members
Federation DirectormdashBill Johnson
ldquoDelegate
ALAA Field Trips
PAINTING ON ROCKSmdashANIMALS FLOWERS ETC TO BE OFFERED BY MARILYN KOHLER She will do a class anytime so lets get
with it Lots of fun and great items for the show prizes She has most of the materials neededmdashI have some great river rocks
and all the acrylic paints and brushes are available Letrsquos talk seriously about this Diane will host the get-to-gethers in their
shop Need to schedule with Marilyn and Diane
Conrsquot from page 3
However it is estimated that 80 to 95 of the worlds production of peridot comes from the San Carlos Reservation The peridot occurs as individ-
ual grains and aggregates of grains in a basalt which is about 3 to 35 meters thick that forms the top and sides of Peridot Mesa The material is
recovered after it has weathered out of the basalt in the gullies and canyons which lead down the sides of the Mesa or it is recovered in place in
the basalt The latter method of recovery requires drilling and blasting The peridot grains that are commercially recovered are typically 6 to 13
millimeters in size Therefore the faceted stones produced from this material are generally about 1 carat in size 2 to 3 caratstones are not uncom-
mon but stones particularly flawless ones 5 carats and over are unusual Stones as large as 15 and 22 car- ats have been cut from San Carlos
peridot
On the Reservation peridot can be mined only by individual Native Americans or by individual families of Native Americans from the San Carlos
Reservation In the past the miners have not marketed the peridot directly to the gemstone industry They marketed the material in random size
lots from as small as a coffee can full to as much as a 55-gallon barrel full to local brokers or mineral dealers These local brokersdealers mayor
may not sort and grade the material but they do tend to market to the industry in uniform size lots Currently some of the large volume
miners are marketing the material directly to the industry and are also contracting for cutting services and are marketing cut stones
Currently there is no commercial production of material from any of the deposits in New Mexico but rockhounds and other mineral collectors
gather materials from these locations for their own use
For more information see httpmineralsusgsgov mineralspubscommoditygemstonessp14-95peridothtml
6
2014 ROCK amp GEM SHOWS IN WA OR ID AND MT
CONSULT wwwamfedorgnfms for show details
AUG 15-17-HATROCKHOUNDS-HERMISTON OR
NFMS ANNUAL MEETING
SEPT 13-14 CLALLAM CO GEM PORT ANGELES WA
Affiliations
THE AMERICAN FEDERATION OF MINERALOGICAL SOCIETIES
THE NORTHWEST FEDERATIKON OF MINERALOGICAL SOCIIETIES
SCRIBE
ALAA
6
2014 ROCK amp GEM SHOWS IN WA OR ID AND MT
CONSULT wwwamfedorgnfms for show details
AUG 15-17-HATROCKHOUNDS-HERMISTON OR
NFMS ANNUAL MEETING
SEPT 13-14 CLALLAM CO GEM PORT ANGELES WA
Affiliations
THE AMERICAN FEDERATION OF MINERALOGICAL SOCIETIES
THE NORTHWEST FEDERATIKON OF MINERALOGICAL SOCIIETIES
SCRIBE
ALAA