“Almost our entire quartz program had come from China,” said Marisa Bedrosian, corporate counsel for Bedrosians Tile & Stone, the California company her grandfather founded, which has a ...

China announced it has discovered new deposits of high-purity quartz, a mineral with a small but crucial role in the production of semiconductors and solar panels. High-purity quartz is one of the ...

China has discovered two high-purity quartz deposits, one near Qinling, Henan province, and the other in Altay, Xinjiang. The State Council has officially designated high-purity quartz (HPQ ...

Discoveries of rare and valuable mineral resources, while often making instant headlines, tend to take years to pay off – and that is happening now with a high-purity quartz that is of strategic ...

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.

A new US antidumping (AD) and countervailing duty (CVD) case was filed on April 16, 2018 by Cambria Company LLC against imports of Certain Quartz Surface Products from China. The case targets ...

the team found 80 stone tools, including a notch, scrapers, cobble, hammer stones and pointed pieces, which all showed clear signs of use. Most of them were made of quartz and quartzite that are ...