Sprache: Englisch
Verlag: Geological Survey, Windhoek, 1992
Anbieter: Rocks of Ages, Inc., Noblesville, IN, USA
Pictorial Wrappers. Zustand: Fine. Bull 1, pp 142 with 4 b&w figures. 139 type minerals and mineral names are presented, comprising 61 valid and 78 conventional non-valid type minerals, 23 unnamed phases are also listed. Includes descriptions of the Tsumeb and Kombat deposits.