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Gypsum, Ettringite, Calcite
N’Chwaning Mine, Kalahari Manganese Fields, Northern Cape Province, South africa
4 x 3.6 cm
Ettringite and calcite included in gypsum (Author: Don Lum)
| Dimensions: | 1600 x 1450 |
| File size: | 423.24 kbytes |
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