Diaspore var. Mangan-diaspore Postmasburg manganese field, Northern Cape Province, South Africa 4.1cm x 2.88cm x 2.55cm Ex. Dr. A. Lincoln Sherk Collection

Description/Interesting Notes: A rare, old time example of mangandiaspore from South Africa!!! This specimen is comprised almost entirely of dark, reddish brown mangandiaspore!!! The specimen consists of a dense network of juxtaposed, intergrown diaspore crystals!!! Classic old South African material!!! The pics hardly do it justice!!! Good luck and be sure to check out my other exciting mineral auctions on ebay!!!

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