Postmasburg Manganese Field, Northern Cape Province, South Africa

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ACKNOWLEDGMENTS

Allan Fraser provided specimens to photograph as did Ronnie McKenzie. Local Postmasburg resident Francois Marais provided valuable information on the mines currently operating in the Postmasburg district that are producing collectible minerals and samples. Francois Retief is thanked for his specimen photos. Mindat.org was, as always, a valuable source of information. The Geological Society of South Africa granted permission to reproduce selected photographs and figures from its historical publications. The South African Archaeological Society granted permission to reprint the image of stone artifacts. Thanks are extended to Desmond Sacco, chairman of ASSORE, for granting permission to reproduce the company’s historical photos from the early mining days at Postmasburg. Karabo Mbhuthi of the Council for Geoscience, Pretoria, granted permission to reprint the historical Geological Survey of South Africa photos. Pavlinka Kovatcheva, University of Johannesburg Faculty of Science librarian, sourced the copy of Hall’s 1926 article. William Besse is thanked for producing the locality map. Malcolm Southwood and Peter Megaw reviewed the article and are thanked for their valuable comments and input. Access to any of the localities mentioned in this article is prohibited without prior, written consent of the land, mine, or mineral rights owner. This work was partly funded by the NRF (National Research Foundation) and CIMERA (the DSI-NRF Centre of Excellence for Integrated Mineral and Energy Resource Analysis). Any opinions, findings and conclusions or recommendations expressed are those of the author and therefore the NRF and DSI-NRF CIMERA do not accept liability in regard thereto.

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Bruce Cairncross

Dr. Bruce Cairncross, a consulting editor of Rocks & Minerals, is professor emeritus at the University of Johannesburg.