1994 | OriginalPaper | Buchkapitel
Germanium
verfasst von : Phillip Crowson
Erschienen in: Minerals Handbook 1994–95
Verlag: Palgrave Macmillan UK
Enthalten in: Professional Book Archive
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Germanium is obtained as a byproduct of zinc or copper-zinc ores. No reliable data are available for the reserves of large tracts of the world. The US Bureau of Mines estimates the combined reserves of Canada, the United States, Europe and Africa at 2150 tonnes, with substantial reserves also available in the former Centrally Planned economies. US reserves are estimated at 450 tonnes, and Zaire’s at 200 tonnes, within the overall total.