 | Costin, Gelu, Fairey, Brenton, Tsikos, Harilaos, Gucsik, Arnold (2015) Tokyoite, As-Rich Tokyoite, and Noélbensonite: New Occurrences From the Postmasburg Manganese Field, Northern Cape Province, South Africa. The Canadian Mineralogist, 53 (6) 981-990 doi:10.3749/canmin.1500063 | Journal (article/letter/editorial) | | 981-990 (2015) DOI: 10.3749/canmin.1500063 TOKYOITE, As-RICH TOKYOITE, AND NOÉLBENSONITE: NEW OCCURRENCES FROM...FROM THE POSTMASBURG MANGANESE FIELD, NORTHERN CAPE PROVINCE, SOUTH AFRICA GELU COSTIN Department of...Rhodes University, P.O. Box 94, Grahamstown 6140, South Africa Department of Earth Science, MS-126 Rice University...Rhodes University, P.O. Box 94, Grahamstown 6140, South Africa ARNOLD GUCSIK Department of Geology, University...Johannesburg, Johannesburg, South Africa ABSTRACT Samples of manganese-rich rock containing two compositional |  | Fairey, Brenton J., Timmerman, Martin J., Sudo, Masafumi, Tsikos, Harilaos (2019) The Role of Hydrothermal Activity in the Formation of Karst-Hosted Manganese Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa. Minerals, 9 (7) 408 doi:10.3390/min9070408 | Journal (article/letter/editorial) | | Karst-Hosted Manganese Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa Brenton...Geology, Rhodes University, Grahamstown 6139, South Africa Correspondence: h.tsikos@ru.ac.za Current address:...Abstract: The Postmasburg Manganese Field (PMF), Northern Cape Province, South Africa, once represented...of the largest sources of manganese ore worldwide. Two belts of manganese ore deposits have been distinguished...Western Belt of ferruginous manganese ores and the Eastern Belt of siliceous manganese ores. Prevailing models |  | | Journal (article/letter/editorial) | | Gloucester Mine Gamagara Hills Postmasburg Manganese and Iron-Ore Field South Africa BRUCE CAIRNCROSS Department...Johannesburg, South Africa brucec@uj.ac.za T he Postmasburg manganese and iron-ore field (Gutzmer and...relative to its northerly neighbor, the Kalahari manganese field. From a mineralogical standpoint, this is possibly...that are found in these two South African mining regions. However, Postmasburg does have some claim to mineralogical...mineralogical fame if the manganese-rich diaspore from the Lohathla, Glosam, and Gloucester mines is |
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