All Shapes Fancy Oval Pear Filter by gemtype. 10 - 14.99 ct 15 - 19.99 ct 7 - 7.99 ct Above 20 ct All Weight Filter by origin. Gem Silica Show sidebar Show 9 12 18 24 Filter by weight. It is seldom seen in jewelry and is used mainly by a small number of high-end jewelry designers. Home Chalcedony Varieties Gem Silica Showing all 10 results. The best specimens have a pleasing blue color with strong saturation.Įven though gem silica is one of the most beautiful blue gemstones, most people have never heard of it. Gem silica is the most valuable variety of chalcedony selling for over $100 per carat. ![]() It is valued for its bright and consistent turquoise color and high level of translucency. Gem silica is a bluish green to greenish blue variety of chalcedony that receives its vivid color from the presence of copper. It is often known as "chrysocolla chalcedony" or "gem silica chrysocolla." Chrysocolla being the copper mineral that ranges from turquoise blue to blue-green, and is typically translucent to opaque, with Gem Silica being the silicated version (meaning it is mixed with quartz). We have a few of these unique necklaces and rings coming soon. ![]() I was already completely in love with the color and the faceted cut was appealing for my architectural design. We are multiple mineral miners, deal with Rocks, Minerals, Lapidary, Collectibles, Fossils, Gems, Jewelry, Suiseki and Biseki. ![]() I was lucky enough to find a few gorgeous pieces that were faceted - and that is very rare. The intense color is reminiscent of floating in the water off the coast of an Italian island (my favorite, Palmarola, comes to mind!). Here we have one of my favorite gemstones.
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