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Franckeite 
Back to Consignment and Collection Auctions - Ends March 11th
San Jose mine, Oruro City, Cercado Province, Oruro Department, Bolivia
- 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:Toenail
- Size Description:3.7 x 2.3 x 2.3 cm
Description:This is one of the rarest sulfosalts in the world. This specimen is a very rich, incredibly rare, superb quality, crystallized specimen of the triclinic lead, tin, iron, antimony sulfosalt Franckeite consisting of somewhat "sword"-shaped crystals oriented into spherical aggregates with associated acicular crystals of silvery Jamesonite. This piece is a great small toenail for somebody looking to own a rare and highly displayable specimen of this hard to find materal. A good opportunity to acquire something that is rarely offered in the open market for a great price. This species belongs to the only group of minerals that forms in naturally "round" or "cylindrical" shaped crystals. This specimen is over 30 years old and was part of the best find of the material. There were only a handful of good specimens, and well crystallized display pieces like this are few and far between.
