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Cronstedtite (rare silicate)
- Siglo XX Mine, Llallagua, Rafael Bustillo Province, Potosi Department, Bolivia
- Miniature, 3.4 x 2.3 x 0.7 cm
- Start Time: 11/28/2009 6:45:00 pm (CST)
- End Time: 12/03/2009 6:56:10 pm (CST)
- Auction Closed
Item Description
Cronstedtite is a RARE iron silicate of the serpentine group. This very rich and showy specimen is festooned with lustrous, black, trigonal crystals to 1-2 mm on a thin crust of matrix. The crystals are formed into crude botryoids. It is a rare occurrence to have such a rich coverage of cronstedtite, and this specimen displays very well. This is a CLASSIC rarity from the famous Siglo XX Mine of Bolivia and is very seldom on the market. Valued $400.