Vivid blue-green Gem Silica
Gem silica from the Inspiration Mine, Arizona, a classic and now-closed locality known for producing some of the most desirable material of this type.
Gem silica is a chrysocolla-bearing chalcedony colored by copper, which is what gives it its distinctive saturation
1.555 carats / 8.1 x 8.1 x 5.0 mm
Estimate: $225 - $235
