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Measurements:
67 x 59 x 27 mm Description: Cream coloured, botryoidal, manganoam calcite aggregates on reddish-brown to black goethite which, in turn, sits on a thin layer of mangenese and the latter, on rock matrix. The calcite fluoresces under ultraviolet light. The calcite has very little damage. Weight of Specimen: 93.0 g Chemical Composition: CaCO3 (calcite) Hardness on Moh's Scale: 3 (calcite) Location:
N'Chwaning 3, Kalahari Manganese Fields, Kuruman area, South Africa. Specimen Code:
SKMF 006 US $ 150 . .
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