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Published byJemimah Moody Modified over 9 years ago
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Minerals
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What are minerals? Naturally occurring Inorganic Solid Specific chemical compositions Made up of specific compounds or elements Definite crystalline structure Form in open spaces and crystals grow to fill that space
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Mineral Identification Color Luster Streak Hardness Breakage
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Mineral Identification Color Caused by trace elements or compounds within a mineral Luster The way a mineral reflects light Metallic minerals- reflects light Non-metallic- do not shine Glassy, greasy, pearly, dull or earthy
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Mineral Identification Hardness Measures how easily a mineral can be scratched Moh’s Scale (1-10) Finger nail, glass, streak plate Streak The color of a mineral when it is broken up and powdered.
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Mineral Identification Breakage Minerals break along planes where atomic bonding is weak. Cleavage- a mineral splits evenly along planes Fracture- minerals that break with rough/jagged edges.
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