AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Barite over Calcite

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Barite over Calcite from Coombefield Quarry, Isle of Portland, Dorset, England

 
Barite over Calcite from Coombefield Quarry, Isle of Portland, Dorset, England

Barite over Calcite from Coombefield Quarry, Isle of Portland, Dorset, England

Photo below under shortwave ultraviolet illumination:
Barite over Calcite from Coombefield Quarry, Isle of Portland, Dorset, England

DESCRIPTION:No. 58361
Mineral:Barite over Calcite
Locality:Coombefield Quarry, Isle of Portland, Dorset, England
Description:Plumose formations of translucent brown bladed barite crystals to 8 mm over transparent pale-yellow rhombohedral calcite crystals to 1 mm on one face of gray matrix. The calcite fluoresces white under SW UV illumination. Ex. W. Keller #6294; ex. N. A. Zachariades collection
Overall Size:5.5x3x2.5 cm
Crystals:0.5-8.0 mm
Status: Sold - Posted here for reference only
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