Sulvanite

Origin: Fufunfu, Katanga, Congo (Zaïre)

Sample size: 2.5 x 2 x 1.5 cm

 

  

A very large, 1.3 cm, partially altered and incomplete, lustrous, gold-coloured sulvanite crystal nicely set on contrasting milky-white calcite rhombs and darker limestone matrix.

Origin: Mercur District, Tooele Co., Utah, U.S.A.

Ex Wyman and Scalisi collections

Sample size: 5.6 x 4.3 x 3.1 cm

 

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A 5 mm crystal grouping of dark dull metallic sulvanite is set on matrix

  

The specimen above has crude dull metallic cubic crystals of sulvanite to 7 mm on edge scattered about the matrix. Minor calcite is on the matrix; the specimen having been etched of calcite to expose the sulvanite.

  

Sulvanite on quartz

Origin: Thorpe Hills, Mercur District (Camp Floyd District), Oquirrh Mts, Tooele Co., Utah, U.S.A.

Sample size: 9.1 x 2.5 x 4.6 cm (top), 8.8 x 4.9 x 3.2 cm (2nd/3rd row), 3.1 x 2.7 x 4 cm (bottom)

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Sulvanite on marble

Origin: Colonnata quarry, Apuane Alps, Carrara, Italy

Ex. Alessandro Genazzani collection

Sample size: 2.5 x 1 x 1.5 cm

 

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