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RM1654 Dufrénoysite

Lengenbach quarry, Imfeld, Binn, Valais, Switzerland

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Rich group of needle to fibrous like dufrénoysite crystals, brilliant and disposed in a vug (12x7 mm) in the dolomite matrix. Dufrénoysite is now a member of sartorite group. With the FGL (Forschungsgemeinschaft Lengenbach) label L-10-4404 and from the Type Locality.

Size: 6.5 × 4.5 × 2.5 cm
Found in 2010.

Localidad Tipo - Type Locality

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RM944 Seligmannite with dufrénoysite

Lengenbach quarry, Imfeld, Binn, Valais, Switzerland

Small group of very brilliant seligmannite crystals, like mirrors, gray to dark brown color. They show well defined faces and edges. Accompanied by needle-like crystals of dufrénoysite, with fibrous appearance and almost black color, interpenetrating with seligmannite. A premium quality specimen for systematic collectors. BOTH SPECIES have the type locality in Lengenbach.
Code: LB 779 (1999)

Size: 5.1 x 3.5 x 3.5 cm.
Main crystal: 3 x 2 mm.
Found in 1999.

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