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Columbite-Tantalite (Whitmore Coll.)
- Keystone District, Pennington Co., South Dakota
- Thumbnail, 2.8 x 1.9 x 0.3 cm
- Start Time: 08/20/2010 6:30:00 pm (CDT)
- End Time: 08/26/2010 6:30:00 pm (CDT)
- Auction Closed
Item Description
A well-striated, highly lustrous metallic blade of columbite-tantalite with an unusual rounded termination from the famous deposits of Pennington County, South Dakota. A very nifty, two-sided crystal. The termination and one side are pristine, with the other side being contacted. Excellent and uncommon old-time material from the Robert Whitmore Collection # 775. rare!