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China hits 35 million metric ton high-purity quartz jackpot, can reduce its US relianceChina has discovered two high-purity quartz deposits, one near Qinling, Henan province, and the other in Altay, Xinjiang. The ...
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What's the difference between a rock and a mineral?Each type of mineral has a unique crystal structure ... has the chemical formula (SiO2). The mineral is colorless in its pure form, but impurities can either make quartz crystals appear opaque ...
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