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ATHENA

MINERALOGY

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Mineral: HELMUTWINKLERITE
Formula: PbZn2(AsO4)2(H2O)2
Crystal System: Anorthic (Triclinic)
Group: Tsumcorite group
IMA Number: 1979-010
References: NJMM (1980), 118; EJM 10 (1998), 179; HB4 (2000)
Type Locality: Tsumeb, Otjikoto Region, Namibia

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