Needles Blue Chrysocolla Cabochon

This Chrysocolla-Chalcedony, sometimes called gem silica, is from the Blue Danube Mine out of Lake Havasu in the Needles, CA area. The location belongs to the Needles Gem and Mineral Club.  When the claim was active, only club members and their guests could dig for this rare stone.  In the last few years, this material has become exceedingly rare, with rough or slabs being very difficult to find.

This cabochon features ribbons and patches of Needles Blue Chrysocolla-Chalcedony, chrysocolla, and malachite within a white host stone. Polished to a shiny luster. Flat, polished back with a beveled edge for ease of setting. You will receive the exact gemstone shown photos.

Weight: 37.32 carats
Length: 42.24 mm
Width: 18.71 mm
Height: 5.94 mm

Gem Species: Chalcedony
—Variety: Chrysocolla-Chalcedony
Trade Name(s): Chrysocolla, Chrysocolla-Chalcedony, Gem Silica, Needles Blue
Origin: Needles, California, USA
Enhancement(s): (N) Natural

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American Gem Trade Association Gemstone Enhancement Codes

Enhancement: Any treatment process other than cutting and polishing that improves the appearance (color/clarity/phenomena), durability, or availability of a gemstone.

(N) Natural
No modification; natural stones which are not currently known to be enhanced (or currently has no known modification process).