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 III Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

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

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

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

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

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

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

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

DESCRIPTION:No. 81281
Mineral:Calcite var. Manganoan Calcite
Locality:N'Chwaning III Mine, Kalahari Manganese Field, Northern Cape Province, South Africa
Description:Lustrous translucent pink calcite crystals in 25 mm spherical formation over brown manganese ore. The calcite crystals are colored pink by manganese, causing them to fluoresce orange under LW-SW UV illumination, commonly known as manganoan calcite. Ex. Marshall Sussman; new find in 2021
Overall Size:25x25x23 mm
Crystals:8-12 mm
Archived: For reference only

 

 

 

 

 

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