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Published byGavin Amos Smith Modified over 8 years ago
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Formation, Mining, and Use of Minerals Cornell Notes Page 143
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REVIEW: What do we know about how minerals are made? –(Think about the characteristics of minerals…) Naturally occurring Inorganic NOT made by humans, plants, or animals!
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How do Minerals form? In Magma and Lava –Minerals crystallize in the liquid rock. –Different Minerals begin forming crystals at different temperatures- this causes them to separate out into pure samples.
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How do Minerals form? In Magma and Lava –If magma cools quickly, crystals don’t have time to grow. –The slower the magma cools, the bigger the crystal can grow!
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In Water –Elements and compounds dissolved in water crystallize as the water evaporates
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Why do we need minerals? We eat minerals to stay healthy- iron, calcium, salt We use minerals for building and construction- gypsum is used to make dry wall, iron is used to manufacture steel. Minerals like copper and gold are used in appliances and electronics.
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How do we get minerals?
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How do we get minerals? Ore: type of rock containing enough minerals to be mined for profit. Surface Mining –Open pits, surface coal mines, and quarries.
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Subsurface Mining –Passageways are dug into the Earth to reach the ore. –Minerals are located too deep to be mined with surface mines.
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