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Mineral Uses and Special Properties
Earth Science
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SOME MINERALS AND THEIR USES: Talc is used in powders and make-up Gypsum is used in drywall or sheetrock Fluorite is used in toothpaste Quartz (found in sand) is used in making glass
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Copper is used in electrical wiring, jewelry and coins
Halite is used to deice roads, and to season/preserve food Calcite is used in tums to help acid indigestion and in cement
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MINERALS AND THEIR SPECIAL PROPERTIES:
Calcite: has double refraction, fizzes with HCl, rhombic crystals Halite: tastes salty, cubic crystals Sulfur: has a rotten egg odor
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Magnetite & hematite: are magnetic
Calcite & Fluorite: fluorescence
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ORES AND WHAT THEY ARE MINED FOR:
Protective shielding against X rays and used in batteries Galena: an ore of lead
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Ore vs. Mineral Group An ore is a mineral that is mined, then the useful substances are extracted. Galena is a lead ore (contains lead PbS) A mineral group is based on the elements in the mineral. Galena (PbS) is a sulfide
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