1. Welcome to Evans Mining Company

2. Directions
You and your mining partner must only use your toothpicks!
The pan in front of you is your mine!
Mine out the beads and seeds!
3. By the way..
The colored beads cost you money, the bronze & gold are worth the most!
4. What it will cost you
You will get one piece of candy for every:
25 gold Beads
45bronze Beads
5. Now..you must get it back the same way!
6. Table of Contents
Date: 8/17
Section: Minerals
Title: Minerals classification
Page 2
7. Mining
It is the process of removing rock and mineral material from the Earth for society to use to make products!
8. Open pit mining
(surface mining)
This is digging a hole on the surface of the earth to remove the material we want.
9. Subsurface Mining when the material is deep in the ground!
10. Mine reclamation returning the land to a useable state!
Before and after images
11. II. The world of
minerals
12. What determines if
something is a mineral?
Naturally occurring
solid
Crystal structure
inorganic
definite chemicalmake-up
13. What do you think?
Which of these are minerals?
Sand
petroleum
gold
coal
glass
rubies
diamonds
water
Here is a hard one What about ice?
14. III. How do geologists
identify minerals?
1.One way is color!
http://www.minresco.com
http://www.prettyrock.com
http://www.gems-afghan.com
http://www.globalcrystals.com
15. 2. A mineral's hardness
helps identify it.
Not all minerals have the same hardness.Some you can easily scratch with your fingernail!
/vwdocs/vwlessons
http://www.wpclipart.com
http://www.infowest.com
http://www.wpclipart.com
http://www.prettyrock.com
16. 3. Streak test
Streak is the color of a mineral powder.
Many minerals appear a different color when powdered than they do as a big piece. The color may be entirely different, or it may be a different shade.
http://cmsc.minotstateu.edu
http://cmsc.minotstateu.edu
http://www.uky.edu/KGS
17. 4. Luster
How do these
look different?
Copyright Dr. Richard Busch
Courtesy United States Geological Survey
Courtesy United States Geological Survey
Each reflects light differently that is luster!
Which of these words would you use to describe these minerals?
Glassy, metallic, dull, silky, waxy, pearly
18. 5. Minerals also
have different densities.
This means for equal size, they have their own special weight.
Which one is worth more?
How could you tell?
http://www.palagems.com
A scientist would measure their densities and they would be different!
The first one is topaz (worth a lot) and the second is citrine quartz (not worth a lot).
19. 6.Minerals also have
different crystal patterns
Copyright Dr. Richard Busch
http://webphysics.davidson.edu
http://www.wired-artist-jewelry.com
http://www.fabreminerals.com
Link to crystal video media player
quicktime
http://www.fabreminerals.com
20. 7.Another property is the way a
mineral breaks.
Fracture means it breaks in a random pattern that cannot be predicted.
Cleavage means it breaks the same way every time.
www.visionlearning.com
donsmaps.com
Calcite and halite break a special way.
Quartz and chert break in a random pattern.There is not way to predict how they break.
www.mrsciguy.com
21. Rock Unit
The three tiers