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Olmiite on Calcite from N'Chwaning Mines, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)

 
Olmiite on Calcite from N'Chwaning Mines, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)

Olmiite on Calcite from N'Chwaning Mines, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)

Olmiite on Calcite from N'Chwaning Mines, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)

Below: fluorescence under ultraviolet illumination
Olmiite on Calcite from N'Chwaning Mines, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)

DESCRIPTION:No. 54672
Mineral:Olmiite on Calcite
Locality:N'Chwaning Mines, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)
Description:Lustrous pink-brown olmiite crystals in hemispherical aggregates to 12 mm diameter on translucent colorless calcite crystals to 13 mm. The olmiite crystals appear pink when viewed under incandescent illumination and fluoresce red under UV illumination.
Overall Size:4x2.5x2 cm
Crystals:1-13 mm
Status: For reference only
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