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Sulphides

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Large pyhrrotite crystals, Dalnegorsk, Russia. Large (5 cm) crystals of sphalerite, dominated by the tetrahedron. Berry Materials Corp. Quarry, N Vernon, Jennings Co, Indiana 13 mm crystal of cobaltite from Håkansboda, Lindesberg, Örebro County, Sweden Pyrite pyritohedron/octahedron combination, 25 mm Proustite, lustrous, sharply terminated 8 mm crystal with calcite crystals. Schneeberg, Erzgebirge, Saxony, Germany.
Germany proustite 1.jpg Germany proustite 2.jpg Germany pyrargyrite 1.jpg Germany pyrargyrite 2.jpg Germany millerite.jpg
Germany chloanthite 2.jpg Germany chloanthite 1.jpg Cavnic sphalerite (15 mm) showing fine spinel twin on 9 cm matrix with pyrite and quartz Cavnic Mine sphalerite spinel twin, 20 mm wide. Cavnic Mine sphalerite spinel twin, 20 mm wide.
Cavnic Mine chalcopyrite (to 2 cm) and tetrahedrite on 64 mm specimen Bournonite cog wheel twin, 2 cm. Baia Sprie, Romania. Bournonite twin crystals on 7 cm matrix. Baia Sprie, Romania. Realgar, doubly terminated 2.5 cm crystal on 6.5 cm matrix. Baia Sprie, Romania, found December 2005. 19 mm chalcocite group including single elongate crystals and pseudohexagonal twins. Geevor Mine, Cornwall.
Chalcocite twins, 7 mm diameter, Geevor Mine, St Just, Cornwall. Bornite crystals,cube-octahedra, Redruth, Cornwall, 14 mm. Bornite penetration twins to 6 mm on 8 cm matrix, Carn Brea Mine, Illogan, Cornwall. Bornite penetration twins to 6 mm on 8 cm matrix, Carn Brea Mine, Illogan, Cornwall. Bornite penetration twins to 6 mm on 8 cm matrix, Carn Brea Mine, Illogan, Cornwall.
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