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Size: 125 x 95 x 80 mm
The crystals fluoresce orange with 365nm long wave ultraviolet light
This crystal is a beautiful yellow green color with an etched termination at one end
Green common opal is a type of opal that does not have the characteristic play-of-color of precious opal
Sphalerite (Var. Marmatite) with Quartz and Carbonate – Stari Trg Mine, Trepča Mining Complex, Kosovo pakimer Size: 125 x 95 xLustrous black crystals of iron rich sphalerite (marmatite) with sharp, transparent quartz crystals and numerous sparkling cream colored globular carbonate aggregates. The open, three dimensional composition provides an attractive display from multiple angles. The Trepa Mining Complex has been renowned for producing museum quality specimens of sphalerite, quartz, galena, pyrite, and carbonate minerals for decades. This specimen is a classic Trepa
