Dims: 3.35x2.17x1.42" (8.5x5.5x3.6cm)
Wt: 5.91oz. (167.3g)
This hand specimen is a host rock with a coating of dioptase crystals on one surface. These crystals are transparent, and intensly green - they sparkle green fire in sunlight or under a loupe. Some of the crystals approach 3 or 4 mm in length, but most of them are smaller than 1mm. There are additional colorless transparent crystals present, and these have a smoothed appearance. I suspect that they are calcites that were partially disolved during the cleaning of this specimen. The host rock appears to have been coated with a layer of lacquer, possibly to stabilize it.