AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from South Africa > Calcite var. Manganoan Calcite

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Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - Fine Minerals.com and Allminerals.com

   

Calcite var. Manganoan Calcite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

 
Calcite var. Manganoan Calcite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Calcite var. Manganoan Calcite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Calcite var. Manganoan Calcite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Calcite var. Manganoan Calcite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Photo below under shortwave ultraviolet illumination:
Calcite var. Manganoan Calcite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Photo below under longwave ultraviolet illumination:
Calcite var. Manganoan Calcite from N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

DESCRIPTION:No. 82620
Mineral:Calcite var. Manganoan Calcite
Locality:N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa
Description:Cluster of intersecting translucent pink calcite crystals that fluoresce orange under LW-SW UV. The calcite crystals are in elongated aggregates of parallel crystals. The pink color is due to manganese impurities, commonly called manganoan calcite. Ex. Miller collection T3082; ex. Betts
Overall Size:17x17x13 mm
Crystals:1-12 mm
Archived: For reference only

 

 

 

 

 

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