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Locality

Freiberg dist., Erzgebirge, Saxony, Germany

Formula

Cu(Ag,Cu)₆Ag₉Sb₂S₁₁

Size

SmCabinet 9x6x5cm

Tagged

sulfide

Great larger specimen and although the photos do not do it justice because of the hghly reflective nature of the minerals, it is a terrific specimen. Under the scope you will see abundany deep red Pyrargyrite crystals with plates of silvery Polybasite. Comes with label of Arthur Kusche and US National Museum (Smithsonian), who acquire it from Carl Bosch. Good provenance (see provenance tab) with three older lables. Label matches number on specimen.

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Locality

Zaca mine, Alpine Co., California, United States

Formula

Cu(Ag,Cu)₆Ag₉Sb₂S₁₁

Size

Thumbnail 2.5x2x1.5cm

Tagged

sulfide , copper

Exceptional micro crystal of this rare sulfosalt to about 0.7mm.

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Locality

Husky mine, Elsa, Galena Hill, Yukon, Canada

Formula

Cu(Ag,Cu)₆Ag₉Sb₂S₁₁

Size

Thumbnail 1.5x1.5x0.4cm

Tagged

copper , silver

A superb platy, iridescent plate of pseudo-hexagonal crystal group to 1.2cm across. Overall the specimen is 1.7cm. Highly sought after locality.

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Locality

Fresnillo, Zacatacas, Mexico

Formula

Cu(Ag,Cu)₆Ag₉Sb₂S₁₁

Size

Cabinet 10x6x6cm

Tagged

sulfide , copper , silver

Large, thin plates of Polybasite covered by micro Pyrite crystals. The rest of the mass is composed of Galena and Sphalerite.

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Locality

San Juan de Rayas mine, Guanajuato, Mexico

Formula

Cu(Ag,Cu)₆Ag₉Sb₂S₁₁

Size

Thumbnail 2x1.5x1.3cm

Tagged

sulfide , copper , silver

A sweet little Polybasite crystal with hexagonal form and nice "striations" in patterns that mimic the crystal shape. 

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Locality

Fresnillo, Zacatacas, Mexico

Formula

Cu(Ag,Cu)₆Ag₉Sb₂S₁₁

Size

Thumbnail 2x2.1x0.5cm

Tagged

sulfide , copper , silver

Silvery, deeply "striated" crystal of Polybasite.