Mottramite
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Crystal ClassicsFeatured
Tucson, Arizona, USAThis is a really funky oddity known only from the famous Tsumeb mine. Mottramite is ordinarily a very rare lead copper vanadate species but at Tsumeb mine it occurred in several different forms, some of which are extremely rich. This really intriguing specimen is an apparent cast of Mottramite after some unknown mineral, or minerals. It is a large, cabinet-sized boxwork of thin 'sheets' of murky to khaki-green Mottramite crystals interlocking with large hollow open spaces. This open texture is more commonly seen with Smithsonite in limestone deposits and may well represent a metasomatic replacement of Mottramite after dolomitized limestone resulting in this change in volume. It really is a weird and wonderful example of the complex geochemistry which went on in the orebodies at Tsumeb mine. Ex Weyand collection.
Product details
Species
SizeCabinet
Dimensions8.5 x 10.5 x 5.5 cm
Listed on09/03/2025
Locality
SKUCC52720
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Mineral guide
Learn about Mottramite
vivid green to olive botryoidal coatings and striking luster; a popular vanadate prized for color, texture, and key localities.
Regional guide
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