Anglesite and Galena crystals from the Tsumeb Mine, Otavi Mountains, Namibia, Ilse Baer collection– miniature specimen as unique piece
This miniature specimen shows Anglesite and Galena crystals from the famous Tsumeb Mine in Namibia and originates from the Ilse Baer collection. The piece was collected before 1972 which adds historical collector value.
The light slightly greenish to beige Anglesite crystals are well formed displaying typical blocky to tabular shapes with sharp faces and edges. They are set in strong contrast on a dark granular Galena matrix giving the specimen a striking two tone appearance. The crystals are clearly recognizable and create an aesthetically balanced combination of light and dark areas.
Geology & Origin
Anglesite is a secondary lead sulfate mineral forming through the oxidation of Galena. This process takes place in the oxidation zone of lead ore deposits often resulting in well developed crystals on primary sulfides.
The Tsumeb Mine in the Otavi Mountains is one of the most important mineral localities in the world known for its exceptional diversity and quality of minerals. The complex geochemical conditions of this deposit allowed the formation of numerous secondary lead minerals with excellent crystal development.