Cornwallite, Baryte
Old Potts Gill Mine, Potts Gill, Caldbeck, Allerdale, Cumbria, England, UK
A specimen of botryoidal, green cornwallite in a boxwork, gossan matrix with massive white barite from a famous English locality, the Old Potts Gill Mine of Caldbeck Fells, Cumbria. Ex Edna Doughty and Richard Hauck Collections.
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