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Oyelite : Ca10Si8B2O29·12.5H2O | |
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Fuka mine, Bitchu-cho (Bicchu-cho), Takahashi, Okayama Prefecture, Chugoku Region, Honshu Island, Japan 0.8 cm area of oyelite in spurrite. S349-15 Alfredo Petrov specimen. |
| © 2008, JGW | Photo ID: 155503 View Count: 103 |
Oyelite : Ca10Si8B2O29·12.5H2O | |
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Fuka mine, Bitchu-cho (Bicchu-cho), Takahashi, Okayama Prefecture, Chugoku Region, Honshu Island, Japan Veinlet of oyelite in spurrite; the oyelite has a cross-fibrous structure. S361-06 1 cm area of oyelite. Excalibur Mineral Company specimen. |
| © 2008, JGW | Photo ID: 155504 View Count: 87 |
Oyelite : Ca10Si8B2O29·12.5H2O | |
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N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa White acicular Oyelite xls on Calcite. Field of view 3 mm. Depth of field is achieved with CombineZM. Specimen and photo Leon Hupperichs. |
| © Leon Hupperichs | Photo ID: 86747 View Count: 356 |
Oyelite : Ca10Si8B2O29·12.5H2O, Calcite : CaCO3 | |
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N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa 5 mm spray of oyelite, likely replacing calcite. |
| © Ł Kruszewski 2007 | Photo ID: 110384 View Count: 135 |
Oyelite : Ca10Si8B2O29·12.5H2O, Bultfonteinite : Ca2[F|HSiO4] · H2O | |
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N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa A 12 x 6 cm specimen with white Oyelite on pink crystals of Bultfonteinite from the N'Chwaning mines, Kalhari manganese-fields, South Africa. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 145690 View Count: 131 |
Oyelite : Ca10Si8B2O29·12.5H2O | |
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N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa The width of field is 7.0 mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (20 exposures). Equipment: Nikon D-100 digital camera on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 178484 View Count: 67 |
Oyelite : Ca10Si8B2O29·12.5H2O | |
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N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa Oyelite spray. Diameter 2.2 mm Photo and Collection Christophe Boutry |
| © C.Boutry | Photo ID: 144823 View Count: 140 |
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N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa Thick white soft layered crust of Oyelite covering botryoidal Bultfonteinite. The Oyelite crust retains the microcrystalline surface structure of the underlying Bultfonteinite. Image width is 2.8cm. Mine workers often used to rinse off the rare Oyelite crusts to expose the Bultfonteinite! On the underside of the specimen are found water-clear ... |
| © 2006 L.Rantos | Photo ID: 61244 View Count: 479 |
Oyelite : Ca10Si8B2O29·12.5H2O, Calcite : CaCO3 | |
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N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa 4.6 x 4.4 x 3.4 cm. This specimen freatures a superb oyelite crystal of 10 mm. |
| © Rob Lavinsky | Photo ID: 180093 View Count: 98 |
Oyelite : Ca10Si8B2O29·12.5H2O, Calcite : CaCO3 | |
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N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa 3.2 x 3.1 x 2.2 cm. This specimen features superb oyelite crystals to 8 mm. |
| © Rob Lavinsky | Photo ID: 180092 View Count: 90 |
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