SURVEY NAMIBIA 1990 Open File Report MRS 12 2 Abstract Niobium-tantalum mineralisation in Namibia occurs...series, or as niobium-tantalum minerals of the pyrochlore group. Minerals of the columbite-tantalite series...basement rocks of the Namaqualand Metamorphic Complex, and with rare metal pegmatites of late Namibian...Precambrian rocks of the Damara Sequence. Pyrochlore group minerals (pyrochlore, microlite and betafite) occur in...by-products of Tin-mining operations in central Namibia (Uis, Nainais, De Rust). Prominent niobium-tantalum
REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY THE MINERAL RESOURCES OF NAMIBIA FIRST...ENERGY Of the several hundred minerals present in Namibia, around sixty have been exploited. some, such as...base metals and industrial minerals have helped Namibia rank amongst the top five mining countries in Africa...terms of production and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries
petrologists as those of the undersaturated alkalic group—the nepheline syenites and their relatives. Rare...detailed geological survey of the Alné Island complex and announced his results in a series of papers...completed most of the field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913. Although...fairly pure calcite (Garson and Smith, 1958). The complex was first studied by F. Dixey, and it was he who...detailed and complete studies of a carbonatitic complex. Between 1950 and 1956 there took place the most
