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Alstonite, Calcite, Pyrite


Alstonite : BaCa(CO3)2, Calcite : CaCO3, Pyrite : FeS2

Photo Copyright © Paul Nicholson  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Brownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor District, North Pennines, North and Western Region (Cumberland), Cumbria, England, UK
A single alstonite crystal, 8mm in length, on calcite with pyrite. Overall size - 22mm x 11mm x 21mm. Paul Nicholson specimen and photo.

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