Glossary of Chapter 3 Rocks and Minerals

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What physical properties are used to identify a mineral?
Color, streak, luster, hardness, cleavage, fracture, magnitism, ability to bend light rays, fluorescence, taste, crystal shape and acid reactions.
What are the physical properties of a mineral largely due to?
Their internal arrangment of atoms.
What is streak?
Streak is the color of a mineral in its powder form.
What are the two types of luster?
Matallic and Non-Matallic
Name the 10 hardnesses, starting with the hardest.
Diamond, Corundum, Topaz, Quartz, Feldspar, Apatite, Fluorite, Calcite, Gypsum, and Talc.
What is a mineral?
A mineral is a naturally occuring, solid, inorganic substance that has definate chemical composition and molecular structure.
What is the hardness scale called?
Moh's Scale of Hardnesses
What are the types of non-matallic luster?
earthy, dull, glassy, pearly, greasy, etc.
What is cleavage?
Cleavage is the tendancy of a mineral to split along one or more smooth, flat surfaces or planes.
What is fracture?
Fracture is when minerals dont show cleavage, and break.

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