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15 Cards in this Set
- Front
- Back
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Ductile
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ability to pull into wire
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Sianide
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bad poison for gold ore leeching
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Dredging
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scrapings or vaccuums of desirable minerals friom ocean floors, lake bottoms, or stream beds.
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Smelting
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the proccess of removing the desirable metals from the ore. Causes lots of pullution. 8% of world's sulfur dioxide. emits arsenic and lead.
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Tailings
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discarded left behind materials, put in piles called spoil piles.
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mining
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digging for ore
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Gypsum
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Conrete wallboard
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Quartz
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Glass, microproccessors, makes silicon.
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streak
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color of powder from scratch
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luster
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the shine
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cleavage
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it can peel / break easily.
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talc & diamond
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softest & hardest
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minieral
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inorganic, natural occuring solid material.
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ore
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rock containing valuable materials.
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3 most common rock forming minerals
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quartz, feldspar, mica
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