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Volborthite with Chrysocolla 
Back to Consignment and Collection Auctions - Ends March 11th
Monument No. 1 Mine, Monument No. 1 channel, Mystery Valley, Monument Valley, Navajo Indian Reservation, Navajo County, Arizona
- Starting Time:3/4/2010 06:45:00 PM(CST)
- Ending Time:3/11/2010 06:45:00 PM(CST)
Time Left:Auction Is Closed
- Size:SMALL CABINET
- Size Description:7.6 x 5.7 x 3.0 cm
Description:A classic example of Volborthite from the Monument No. 1 Mine in Arizona. This mine is best known for its Volborthite specimens, which have a characteristic electric yellow green color, and platy, sometimes "rosette"-like crystals formations. Typically species with this kind of color can attribute it to the presence of Uranium, but that is not the case with Volborthite. This piece has a fair amount of crystals which are associated with pale blue Chrysocolla and minor black "specks" of what could be Montroseite or Roscoelite(?). A good representative specimen of this uncommon hydrated copper hydroxy vanadate.
