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Rounded 15 mm. cube on matrix; very large and distinct for the species. It is interesting that some dealers might consider this "sharp"?! Compare to the $750 specimen at http://www.irocks.com/render.html?species=Oyelite. From the N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape.
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