Mark Sumich: Outlook for Niobium (Day 1 - Session 2: Speciality Metals)
Hardness Mohs Hardness Scale 1. Talc 2. Gypsum 2.5finger nail 3.5penny 3. Calcite 4. Fluorite 5. Apatite 5.0 nail 5.0-6.0 glass and knife blade.
Silicates SiO n silicon oxide 1/3 of all minerals are silicates about 95% of the Earth’s crust is composed of silicates.
Copyright (c) 2005 Pearson Education Canada, Inc.21-1 PowerPoint Presentation Stan Hatfield. Southwestern Illinois College Ken Pinzke. Southwestern Illinois.
Rocks, Minerals & the Rock Cycle. Section 1 Minerals and Mineral Resources Objectives Define the term mineral. Explain the difference between a metal.
