Fleischerite

Fleischerite is found only in Tsumeb (Ongopolo) Mine, Namibia. It forms in oxidized portions of a dolostone-hosted hydrothermal germanium-bearing polymetallic ore deposits. The oldest samples are estimated to be 541 million years old. == Appearance ==

Fleischerite crystals are very thin and up to 1.5 cm in length. They have a tender reddish hue and form sheets of subparallel individuals or hedgehog-like aggregates. == Paragenesis with other minerals ==

• When fleischerite, cerussite, and mimetite cover a tennantite matrix, they create a rounded, matte white concretion. • When a dolostone core is covered with plumbojarosite and mimetite, which give it a greenish hue, fleischerite grows on top of them all. • Rarely, fleischerite enters paragenesis with alamosite, anglesite, hematite, leadhillite, melanotekite, mimetite, kegelite, larsenite, plumbojarosite, plumbotsumite and queitite. • Fleischerite also may have paragenesis with other secondary germanium minerals. == References ==