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Afwillite : Ca3[HSiO4]2 · 2H2O | |
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Dutoitspan Mine, Kimberley, Northern Cape Province, South Africa Afwillite. Specimen is in the collection of the British Museum of Natural History #1925,463 (1975). Scale at bottom of image is an inch with a rule at one cm. |
| Photo ID: 216966 View Count: 58 | |
Alabandite : Mn2+S, Diaspore (Var: Mangan-diaspore) : AlO(OH) | |
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Postmasburg manganese field, Northern Cape Province, South Africa Black Alabandite crystals associated with orange brown Mangan-diaspore crystals. Field of view 10 mm. Collection M. Kampf No 88-182. |
| © 2006 M. Kampf | Photo ID: 48161 View Count: 460 |
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Postmasburg manganese field, Northern Cape Province, South Africa Dark bronze compact Alabandite or in pseudocrystals with pink laminar Mangan-diaspore. 4,2x2,5x2,5 cm. In my personal systematic collection. Photo Simone Citon. |
| © Simone Citon | Photo ID: 172456 View Count: 133 |
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Aggeneys, Northern Cape Province, South Africa 6.5 x 3.3 x 2.7 cm. Killer garnet crystals, super sharp, to 1.1 cm, on matrix. This is a small mine, you see very little from. Ex. Charlie Key Collection. |
| © Rob Lavinsky | Photo ID: 131921 View Count: 116 |
Andradite : Ca3Fe3+2[SiO4]3, Manganite : Mn3+O(OH) | |
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N'Chwaning I Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa Image is 4mm wide. |
| © 2003 D. Schläfli | Photo ID: 14199 View Count: 556 |
Andradite : Ca3Fe3+2[SiO4]3, Hematite : Fe2O3 | |
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N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa This specimen is just so beautiful and uncommon - sparkly maroon crystals of andradite on euhedral crystals of hematite. Even if you collect N''Chwaning stuff, I doubt you have one of these. 3.2 x 3 x 2.8 cm |
| © Rob Lavinsky | Photo ID: 23827 View Count: 476 |
Andradite : Ca3Fe3+2[SiO4]3 | |
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Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa Large, compound crystal of Andradite (it is complete on front, though halved 3-dimensionally by contact on the back even though it is not broken per se). The color and luster are both good . Uncommon, and nice and just plain HUGE for the size for the locality. 4.3 x 3.9 x 2.7 cm |
| © Rob Lavinsky | Photo ID: 21180 View Count: 348 |
Andradite : Ca3Fe3+2[SiO4]3 | |
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Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa Lustrous, well-formed crystals to .5 cm covering the matrix. The color and luster add to the importance and beauty of this specimen. In person, it has more of a red hue than you see here 5.5 x 5 x 2 cm |
| © Rob Lavinsky | Photo ID: 21183 View Count: 306 |
Andradite : Ca3Fe3+2[SiO4]3, Hematite : Fe2O3 | |
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Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa This is a specimen of hematite on one side of which have formed distinct, euhedral crystals - that were later covered with a layer of wine-red, sparkly garnet microcrystals! Pretty and very unusual - from the Wessels Mine in the Kalahari Manganese Fields of South Africa. This specimen blows you away in person - the pics cannot convey it! 13.3 x ... |
| © Rob Lavinsky | Photo ID: 67899 View Count: 283 |
Andradite : Ca3Fe3+2[SiO4]3, Bementite : Mn5Si4O10(OH)6 | |
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N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa Rhombododecahedral andradite garnets with variously intense color, and white bementite (according to the label) present as aggregates of microscopic hexagonal platelets. Image is 5 mm wide. Acquired in 2007. Photo & collection: D. Schläfli keywords: hires |
| © 2007 D. Schläfli | Photo ID: 132904 View Count: 177 |
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