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20 Cards in this Set
- Front
- Back
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precious, rare, or valuable material
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gem
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having a uniform structure or composition
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homogenous
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formed from non-living materials
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inorganic
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solid, inorganic substance with a crystalline structure
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mineral
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mineral from which a valuable material is extracted
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ore
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5 conditions of minerals
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must occur naturally, must be inorganic, crystal structure, solid, must be homogenous
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blocks or cubes
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isometric
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four-sided prisms and double pyramids
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tetragonal
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six-sided prisms
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hexagonal
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short, stubby crystals, with all sides unequal
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orthorhombic
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short and stubby, but the sides tilt at each end
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monoclinic
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flat with sharp edges, but no right angles
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triclinic
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contain sulfur
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sulfides
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contain oxygen
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oxides
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largest class
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silicates
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found in caves
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carbonates
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how a rock breaks or splits under stress
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cleavage
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how a mineral appears to reflect light
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luster
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the true color of a mineral in powdered form
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streak
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color is _____
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caused by chemicals in a mineral
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