
Chalcedony is a cryptocrystalline form of silica which is made of very fine intergrowths of quartz and moganite. Chalcedony has a waxy luster, and can be semitransparent or translucent. It can assume a extensive range of colors, but those most
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https://www.openpr.com/news/2326716/chalcedony-earrings-market-2021-new-demand-trends-with-growth