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Walter R. Kellogg


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Mineral Specimen #4199    Dioptase

Altyn-Tube, Kirghiz Steppes, Karagandy Prov., Kazakhstan

Type Location

3.3 x 2.3 x 4 cm
largest XL is 7 x 4 x 4 mm


Blocky, semi gemmy, Dioptase crystals on a bed of gray colored calcite crystals from the type location. The color is the typical, rich vibrant emerald green for which Diotase is noted (and very hard to reproduce with a digital camera). The specimen is in very good condition with no appreciable damage although the specimen appears to have been oiled.

This mineral is also found in the following galleries: Minerals From Russia | Cyclosilicates | Minerals Priced Between 50 and 99 Dollars