AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from South Africa > Olmiite and Calcite on Mn-oxide

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Olmiite and Calcite on Mn-oxide from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)

 
Olmiite and Calcite on Mn-oxide from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)

Olmiite and Calcite on Mn-oxide from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)

DESCRIPTION:No. 44283
Mineral:Olmiite and Calcite on Mn-oxide
Locality:N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)
Description:Hemispherical rosette 11 mm diameter on black Mn-oxide matrix with colorless calcite crystals to 2 mm. On the rear edge another olmiite rosette was attached (now missing) leaving the radiating internal growth pattern visible on the surface.
Overall Size:4x2.5x2 cm
Crystals:1-5 mm
Status: For reference only
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