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Warikahnite: Zn3(AsO4)2·2(H2O)
Comments: Divergent, acicular aggregate of yellowish, brownish orange warikahnite crystals on a white quartz matrix. William Pinch collection. Featured on the cover of the Mineralogical Record, 36:4.. Location: "O" stope, 31st level, Tsumeb mine, Namibia.. Scale: 3 x 4.9 cm. © Jeff Scovil