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RM3066   Fettelite and proustite

Glasberg quarry, Nieder-Beerbach, Mühltal, Odenwald, Hesse, Germany

Specimens of fettelite, a complex silver-mercury sulfoarsenide, are very rare and even less so at this size. Under magnification we can observe burgundy red laminar crystals of fettelite, together with idiomorphic crystals of proustite. An exceptional piece.

Size: 9 x 5.2 x 4 cm.

Type Locality