Mineral: Anglesite, Galena, Pyrite
Chemistry: PbSO4
Size: 55 mm
Owner: Harvard University (W.Klein Collection)
Photographer: Malcolm Southwood

Complex, curved, parallel growths of anglesite in sooty oxidising sulphide. Portions of the anglesite are black as a result of inclusions of relict sulphide, probably galena (?). Notably, the matrix includes crystals of residual pyrite (to 3 mm).  The specimen was collected on 9 Level and is number 765 in the Wilhelm Klein collection.

Courtesy  of  the  Mineralogical  &  Geological  Museum  at  Harvard  University,  Anglesite; MGMH  ID# 127432, Tsumeb; Namibia. @ copyright 2012, President and Fellows of Harvard College. All rights reserved.