Chalcocite from Geevor Mine, Cornwall - 7.92g Details Mohs ~6–6

Mohs ~6–6

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Chalcocite from Geevor Mine, Cornwall - 7.92g Details Mohs ~6–6A small labelled Chalcocite specimen from Geevor Mine, Pendeen, St Just, Cornwall. Geevor is a classic Cornish mining locality and is well known among collectors for chalcocite and associated copper tin minerals. This 7. 92g thumbnail shows grey blue copper sulphide matrix with pale and blue green oxidised areas, photographed closely because it measures only 20 x 15 x 20mm. Supplied as the exact specimen shown, with its handwritten Geevor Mine label.