Fluorite -'Blue John'
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Castleton, Derbyshire, England
1799
Fine polished specimen of 'Blue-John' fluorite. The polished face is slightly curved and shows the classic colour banding.
Formula: CaF2
Status: Sold
Dimensions: 75x45x20mm
Size: Small Cabinet (S)
Minerals of the English Midlands
UK Journal of Mines & Minerals No. 12
UK Journal of Mines and Minerals No. 3
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