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Minerals Unit

Geology minerals quiz

TermDefinition
Graphite soft, slippery, cleavage obscurred. 1 hardness. metalic, earthy. 2 spesific gravity. 1 cleavage angle. gray or silverish. C formula.
Pyrite Gold/Brass, 5 specific gravity, metalic, 6.5 hardness, often cubic crystals. FeS2 formula.
Galena Silver, 3 cleavage angles, 7.6 specific gravity, metalic, 2.5 hardness, often cubic, heavy feel, PbS
Copper Copper, 9 specific gravity, metallic, 3 hardness, Amorphous, oxidises green, Cu formula
Magnetite Gray/Black, 7.6 specific gravity, metallic luster, 6 hardness, Magnetic, oxidizes white, heavy feel, Fe3O4 formula
Hematite Silver, 5 specific gravity, metallic, 5 hardness, often magnetic, oxidizes red, streak red, Fe2O3 formula
Limonite Brown/Orange, 3 specific gravity, earthy, resinous, 5 hardness, orange, powdery oxidization and streak, amorphous, Fe2O3H2O formula
Created by: CalebCorelli
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