Mottramite

 

 

Origin: Tsumeb mine, Tsumeb, Namibia

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

  

 

  

Mottramite with calcite

Origin: Tsumeb, Namibia

Sample size: 7 x 6 x 3 cm (top left), 5 x 4 x 3 cm (top right), 6 x 4 x 3 cm (bottom left), 5 x 3 x 1.5 cm (bottom right)

Owner: John Schneider

Photo: John and Mark Schneider

 

Origin: Total Wreck mine, Pima Co., Arizona, U.S.A.

Sample size: 17 x 16 x 15 mm

 

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Origin: Chance mine, Mono Co., California, United States

Sample size: 3 x 2.5 x 2 cm

 

  

Lime green chalky replacements of mottramite pseudomorph after mimetite.

  

Grass green arborescent crystals of mottramite to 8 mm with nice luster probably due to a fine coating of calcite.

  

Green botryoidal crystals of Mottramite to 4 mm with a pleasant velvet-like luster with associated white calcite crystals.

Origin: Tsumeb mine, Tsumeb, Namibia

Sample size: 5.5 4 x 2 cm (top), 6 x 5 x 2 cm (2nd row), 6 x 5.5 x 3 cm (bottom)

 

  

Yellow staining on slickenside matrix

Origin: Crestmore quarry, Riverside Co., California, United States

Ex. DeVito collection

Sample size: 6.5 x 4.5 x 2 cm

 

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This specimen is comprised of almost all mottramite pseudomorphing wulfenite. The largest pseudomorph is 3 cm across. Pseudomorphs of this sort were rare at the Tsumeb mine.

Origin: Tsumeb Mine, Tsumeb, Namibia

Sample size: 10 x 7 x 4.3 cm
 

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