Description
Definitely not a beauty, but super rare is this piece with a bluish part of Calcioandyrobertsite from the famous Tsumeb Mine of Namibia, and this is the type locality. This species is named in honor of Andrew (Andy) Clifford Roberts (1950-), mineralogist with the Geological Survey of Canada, specialist in documentation of new mineral species, in particular from low-temperature secondary parageneses. Specimen is not analyzed. Ex Thorsten Heuser collection