Niobium and tantalum minerals
Various minerals of niobium and tantalum are fairly common in many South West African pegmatites whose age ranges from pre-Damaran (Warmbad area) to Damaran (Karibib - Cape Cross - Omaruru area) and Post-Karoo (Erongo area). A number of those minerals and their mode of occurrence are described.
Communications of the Geological Survey of South West Africa/Namibia
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Niobium and tantalum minerals.pdf | 221.85 KB |