AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Calcite var. Cobaltoan 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. Cobaltoan Calcite from Tynebottom Mine, Garrigill, Alston Moor District, Cumbria, England

 
Calcite var. Cobaltoan Calcite from Tynebottom Mine, Garrigill, Alston Moor District, Cumbria, England

Calcite var. Cobaltoan Calcite from Tynebottom Mine, Garrigill, Alston Moor District, Cumbria, England

Photo below under shortwave ultraviolet illumination:
Calcite var. Cobaltoan Calcite from Tynebottom Mine, Garrigill, Alston Moor District, Cumbria, England

DESCRIPTION:No. 54441
Mineral:Calcite var. Cobaltoan Calcite
Locality:Tynebottom Mine, Garrigill, Alston Moor District, Cumbria, England
Description:Purple translucent calcite microcrystals completely coating one face gray matrix. The purple color of the calcite is caused by cobalt impurities and these are commonly labeled cobaltoan calcite. From one-time find collected by John Lawson (1942-2024) and Robert Lawson in May 1987
Overall Size:5.5x2.5x1 cm
Crystals:0.5-1.0 mm
Archived: For reference only

 

 

 

 

 

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