The Tsumeb base-metal deposit contained one of the most diverse examples of mineralogical paragenesis ever observed within a single mineral deposit (Keller 1977). The deposit hosted approximately 307 minerals and 232 of those minerals are most likely formed in the oxidation zone. Of the total number, 69 minerals were first described from the deposit. Arsenic minerals show the greatest diversity in the Tsumeb deposit: 63 arsenates, 6 arsenites, and 7 arseno-sulfate minerals (see Appendix 1). Typically, As content was around 1% in the ore zone, and was intermittently produced as a by-product (white As oxide).

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Mineralization is...

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