Alstonite
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Holmes Rise, Brownley Hill Mine, Nenthead, Cumbria, England
1646
A single crystal doubly terminated with multiple points, one of the largest i've ever seen, being 22mm long and 12mm wide. Collected in the 1990's
Formula: Alstonite BaCa(CO3)2
Status: Sold
Dimensions: 23x16x12mm
Size: Thumbnail (T)
Minerals of the English Midlands
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