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mineral identification

mineral identification - Section-2 Mineral Identification...

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Section-2 Section-2 Mineral Identification Mineral Identification pg.68 pg.68
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What you’ll learn Describe physical properties used to identify minerals. Identify minerals using physical properties such as hardness and streak.
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Physical Properties Physical Properties Mineral appearance Hardness Luster Specific gravity Streak Cleavage and fracture
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Mineral appearance Mineral appearance How it looks like What color color is it? Which one of the following is gold? Identify by appearance.
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Hardness Hardness A measure of how easily a mineral can be scratched
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Properties of Minerals Mohs Hardness Scale Mineral Talc Gypsum Calcite Fluorite Apatite Feldspar Quartz Topaz Corundum Diamond Rating 1 Softest known mineral. It flakes easily when scratched by a fingernail. 2 A fingernail can easily scratch it. 3 A fingernail cannot scratch it, but a copper penny can. 4 A steel knife can easily scratch it.
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