| Locality type: | Mine |
| Classification |
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| Species: | Olmiite |
| Formula: | CaMn2+[SiO3(OH)](OH) |
| Confirmation |
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|
| Validity: | Valid - Type Locality |
| Associated Minerals: |
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|
| Associates: | Bultfonteinite
Celestine
Hematite
Poldervaartite
Sturmanite
|
| Associated Minerals Based on Photo Data: |
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|
| Calcite | 202 |
| Bultfonteinite | 142 |
| Oyelite | 57 |
| Quartz | 23 |
| - var Chalcedony | 1 |
| Xonotlite | 19 |
| Celestine | 10 |
| Goethite | 7 |
| Hematite | 7 |
| Poldervaartite | 6 |
| Manganite | 5 |
| Gageite | 5 |
| Pectolite | 5 |
| Baryte | 3 |
| Hausmannite | 3 |
| Galena | 3 |
| Hydroxyapophyllite-(K) | 2 |
| Siderite | 2 |
| Natrolite | 2 |
| Andradite | 1 |
| Pyrite | 1 |
| Data |
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| Mineral Data: | Click here to view Olmiite data |
| Locality Data: | Click here to view N'Chwaning II Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa |
| Photo Gallery | View Gallery (508 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 416805 |
| Long-form Identifier: | 1:3:416805:8 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Olmiite |
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|
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| 1.8km (1.1 miles) | âN'Chwaning III Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa |
| 2.7km (1.7 miles) | âWessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa |
| References |
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Bonazzi, P., Bindi, L., Medenbach, O., Pagano, R., Lampronti, G. I., Menchetti, S. (2007) Olmiite, CaMn[SiO3(OH)](OH), the Mn-dominant analogue of poldervaartite, a new mineral species from Kalahari manganese fields (Republic of South Africa). Mineralogical Magazine, 71 (2). 193-201 doi:10.1180/minmag.2007.071.2.193 |
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N'Chwaning II Mine, N'Chwaning Mines, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa