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

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Fluorite (twinned crystals) with Siderite from Boltsburn Mine, Rookhope, County Durham, England

 
Fluorite (twinned crystals) with Siderite from Boltsburn Mine, Rookhope, County Durham, England

Photo below under shortwave ultraviolet illumination:
Fluorite (twinned crystals) with Siderite from Boltsburn Mine, Rookhope, County Durham, England

DESCRIPTION:No. 24468
Mineral:Fluorite (twinned crystals) with Siderite
Locality:Boltsburn Mine, Rookhope, County Durham, England
Description:Twinned crystals of purple fluorite up to 4 cm with minor overgrowth of brown siderite crystals up to 2 mm. The center portion is internally flawless (facet-grade). Fluoresces bright violet under UV illumination. Acquired ca. 1970. Some edge chipping. Ex. L. Russianoff collection
Overall Size:6x4x3 cm
Crystals:1-40 mm
Status: Sold - Posted here for reference only
Buy similar: Minerals from UK, Iceland, Greenland > Halide Minerals

 

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