Physical Geography 102
Minerals and Rocks
What is a Mineral?
Mineral Physical Properties
Physical aspects of a mineral, based on chemical composition and crystalline structure
Other - Specific Gravity, Magnetism, Taste, Hydrochloric acid - HCl, Radioactivity, Fluorescence
Important Crustal Minerals
Feldspar Group (Plagioclase and Orthoclase)
Calcite and Dolomite
Pyroxene Group (Augite)
Amphibole Group (Hornblende)
Mica Group (Biotite and Muscovite)
Halite - "Salt"
What is a rock?
Identification of Rocks
Composition and Texture
Chemical composition - what is the rock's chemical composition?
Particle composition - what is the material that makes up the rock?
The over-all appearance of the rock - Large crystals vs. small crystals - Layering vs. no layering
Major Rock Types
There are three major groupings of rocks
They are all related together by processes of formation in the Rock Cycle.