AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Fluorite (interpenetrant-twinned crystals)

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

   

Fluorite (interpenetrant-twinned crystals) from Weardale, County Durham, England

 
Fluorite (interpenetrant-twinned crystals) from Weardale, County Durham, England

Fluorite (interpenetrant-twinned crystals) from Weardale, County Durham, England

Fluorite (interpenetrant-twinned crystals) from Weardale, County Durham, England

Fluorite (interpenetrant-twinned crystals) from Weardale, County Durham, England

Photo below under shortwave ultraviolet illumination:
Fluorite (interpenetrant-twinned crystals) from Weardale, County Durham, England

DESCRIPTION:No. 62678
Mineral:Fluorite (interpenetrant-twinned crystals)
Locality:Weardale, County Durham, England
Description:Lustrous transparent green cubic fluorite crystals that are interpenetrant-twinned and fluoresce bright violet under SW UV illumination. The fluorescence causes the fluorite crystals to appear purple in sunlight because of the UV content of sunlight.
Overall Size:40x35x32 mm
Crystals:8-24 mm
Archived: For reference only

 

 

 

 

 

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