China’s Ministry of Natural Resources has announced the discovery of two major high-purity quartz deposits – one near Qinling, Henan province, and the other in Altay, Xinjiang region. With State ...
Jacques Steyn sloshed through the puddle, one of many on the shop floor, to point out the slicing, whirling diamond blade as it slashed through a thick slab of quartz. The blade worked its magic with ...
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