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Calcite (variety manganoan) on Kutnohorite
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
2.5cm X 2.3cm x 1.3cm
(Author: steven calamuci)
| Dimensions: | 1600 x 1521 |
| File size: | 245.11 kbytes |
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