This halfe size flat contains a selection of polished slices from the Tsumeb Mine in Namibia, originating from the Ilse Baer collection and assembled before 1972. The specimens display vividly coloured banding, zoned structures and striking contrasts between secondary copper minerals and matrix components. The polished surfaces reveal textures usually hidden in uncut specimens, including fine intergrowths, brecciated areas and rhythmic layering, highlighting the aesthetic and mineralogical richness of this globally renowned locality.
Geology & Origin
The Tsumeb Mine is recognised as one of the most complex polymetallic deposits worldwide, famous for its remarkably rich suite of oxidation and secondary minerals. Over multiple geochemical stages, diverse mineral assemblages developed, many of which can be studied especially well in polished sections. The pieces in this flat document characteristic internal structures from an early collection period prior to 1972 and offer a rare view into the intricate architecture of mineralisation found only at this singular locality.