Emerald color sphalerite (cleophane) with galena

The last of the best specimens of emerald green sphalerite (cleophane). This color appears just once in 30 years history of Androvo mine in Erma Reka. It was a small cavity with just several kilograms of excellent transparent sphalerite crystals with deep emerald color. The material was perfect for faceting and at the moment just several hundred grams left. So far this is the only described deposit with this color. There were just few mineral specimens and I have a luck to own more of them, so this is the last small specimen from that cavity. Sphalerite is developed on the top of galena crystal.

Green sphalerite with chalcopyrite and quartz

The unique specimen I never see for the last 30 years. It presents oxidated galena crystals and green transparent to translucent sphalerite (cleophane) developed on the surface of large quartz crystal and covers it almost completely. The unique property of that specimen is singeneticaly coating the surface of part of sphalerite crystals at the end of their crystallization and after that, as result, we have excellent golden color and irisation in some parts (reminding tiger eye). Excellent chalcopyrite coating forms planes in the crystals and helps for irisation. The surface coating also appears in some parts and makes specimen even more colorful.