-
Volborthite and Tyuyamunite
- Ridenour Mine, Prospect Canyon Dist., Coconino Co., Arizona
- Large Cabinet, 15.0 x 11.2 x 6.0 cm
- Start Time: 05/30/2009 6:20:00 pm (CDT)
- End Time: 06/04/2009 6:00:00 pm (CDT)
- Auction Closed
Item Description
Volborthite is an uncommon hydrated copper vanadate secondary mineral found in the oxidized zones of vanadium-bearing hydrothermal deposits. This bright, LARGE CABINET specimen is richly covered with tiny, sparkly, forest-green volborthite blades and canary-yellow, discrete, microcrystals of the uranium oxide tyuyamunite. This is an EXCELLENT, large combination specimen on blocky, sandstone matrix of these uncommon species. It is more Volborthite than I have ever seen in one place, I can say. Valued at $750.