AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Fluorite (penetration twin)

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Fluorite (penetration twin) from South Vein, Heights Mine, Weardale, County Durham, England

 
Fluorite (penetration twin) from South Vein, Heights Mine, Weardale, County Durham, England

Fluorite (penetration twin) from South Vein, Heights Mine, Weardale, County Durham, England

Photo below under shortwave ultraviolet illumination:
Fluorite (penetration twin) from South Vein, Heights Mine, Weardale, County Durham, England

DESCRIPTION:No. 36506
Mineral:Fluorite (penetration twin)
Locality:South Vein, Heights Mine, Weardale, County Durham, England
Description:Two intersecting twinned fluorite crystals with remnants of matrix included in the base. The fluorite crystals are rectangular, internally transparent, fluoresce violet under UV illumination and have frosted surfaces of microscopic parallel faces. Ex. Croad collection
Overall Size:32x25x25 mm
Crystals:18-20 mm
Status: Sold - Posted here for reference only
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