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Also called silica sand or quartz sand, silica is made mostly from silicon dioxide (SiO2) Silicon compounds are the most significant component of the Eart
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Industrial sand and gravel, often called "silica," "silica sand," and "quartz sand," includes sands and gravels with high silicon dioxide (SiO 2) content
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Silicon is the second most abundant element in the Earth’s crust, after oxygen It has atomic number 14, and occurs in the same group as carbon in the periodic table
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Silicon Mining Because silicon is the second most abundant material on Earth, miners have little trouble finding it
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The industrial economy may someday run out of one of its essential natural resources, oil, but at least the high-tech economy is safe in its supply of silicon, the .
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