Description: Andyrobertsite with Calcioandyrobertsite on Olivenite. Tsumeb mine, Tsumeb, Namibia Specimen size: 4.1 cm. high Holotype specimen Mineralogical Record cover Vol. 30, No. 3, May - June 1999 Specimen: William Pinch Collection Photo: Jeff Scovil & The RRUFF Project

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