 | | Journal (article/letter/editorial) | | Ettringite N’Chwaning II Mine, Northern Cape Province Republic of South Africa C oncrete, that manmade mix...N’Chwaning II mine, Kalahari manganese field, Northern Cape Province, Republic of South Africa. This specimen...dussertite, bariopharmacosiderite, tenorite, and kaolinite. Kaiser (1984) notes that ettringite crystals...N’Chwaning II mine, Kalahari manganese field, Northern Cape Province, Republic of South Africa. Scott Rudolph...locality II mine, Kalahari manganese field, Northern Cape Province, Republic of South of note is the Lucky |  | | Journal (article/letter/editorial) | | HARRIS 231 Prehnite from the Kalahari manganese field, South Africa, and its possible implications... P.O. Box 524, Auckland Park 2006, Gauteng, South Africa e-mail: bc@na.rau.ac.za C. Harris Department...Sciences, University of Cape Town, Rondebosch 7700, Western Cape, South Africa *Present address: Department...described herein from the N’Chwaning II mine, Kalahari manganese field for the first time. The habit and composition...fluid. The existence of prehnite in the Kalahari manganese field provides evidence in support of low-temperature |  | | Journal (issue) | | deposits of Elsmore, New England district of New South Wales. Rankin, John, Sharpe, James L. and Williams...associated minerals from the Barrington Tops area, New South Wales. Graham, Ian T., Pogson, Ross E. and Colchester...ribbons associated with thomsonite from Borambil, New South Wales. Graham, Ian T. and Pogson, Ross E. 7(2):S7-61...Kasolite from the British Empire mine, Arkaroola, South Australia. Plimer, Ian R., Besley, Robert and Brugger...8(2):7S-79 Mendozavilite from the Fitzgerald River district, Western Australia. Birch, William D., Pring, |  | Pack, A., Gutzmer, J., Beukes, N. J., van Niekerk, H. S., Hoernes, S. (2000) Supergene Ferromanganese Wad Deposits Derived from Permian Karoo Strata along the Late Cretaceous-Mid-Tertiary African Land Surface, Ryedale, South Africa. Economic Geology, 95 (1) 203-220 doi:10.2113/gsecongeo.95.1.203 | Journal (article/letter/editorial) | | Cretaceous–Mid-Tertiary African Land Surface, Ryedale, South Africa A. PACK,†,* J. GUTZMER, N. J. BEUKES, H. S....University, P.O. Box 524, Auckland Park 2006, South Africa AND S. HOERNES Mineralogisch-Petrologisches...Johannesburg in the northwestern province of South Africa. The wad was derived from supergene alteration...reducing and acidic ground water that leached manganese and iron from the underlying Malmani dolomite...3-18 $6.00 known to host any major iron and manganese-rich sedimentary beds that could be parent to |  | | Journal (issue) | | from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department, Colombia. Gail & Jim Spann...cm, from Stak Nala, Haramosh Mountains, Skardu district, Gilgit-Baltistan, Pakistan. Zach Goodman collection;...deposits, and consequently with such severely limited field collecting opportunities, should foster a hot-bed...minerals in the Karnes Uranium district near my ancestral home in south Texas. Over time I developed a... from the Knight Vein, Knight mine, Rosiclare district, Illinois. Ex Ocus Stanley Mineral Museum collection; |  | | Report (issue) | | Province, China. John Betts Fine Minerals specimen and photo. No, longtime mineral dealer John Betts of New...New York City and of John Betts Fine Minerals (johnbetts-fineminerals.com) is not retiring quite yet....and running and being updated every Tuesday, and John says that, although he intends to retire, doing...Listed Minerals” on page 2 of his most recent update, John offers a hoard of 20 fine-looking thumbnails and...Vale das Gatas mine group, Sabroda, Vila Real district, Norte Region, Portugal. Fabre Minerals specimen |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Journal (issue) | | poldervaartite from the Kalahari Manganese Field, Northern Cape Province, Republic of South Africa . . . . . . .... . . . . . . . . 350 by C. J. Stanley Founder John Sampson White Editing & Advertising 4631 Paseo Tubutama...Devon afe Da uise Minerals of the nglish La e District aldbec ells Mineralogical Record Gene and Jackie... Record SELECTED BIBLIOGRAPH E E nglish La e District aldbec E Mineralogical Record, 22 E Minerals...Schneckenstein (Charpentier, 1778). Figure 6. The northern side of the Schneckenstein; hand-colored engraving |  | | Journal (issue) | | 85741 Editor & Publisher Wendell E. Wilson Founder John Sampson White Associate Editors Pierre Bariand Sorbonne.................. 273 by H. Yeates The Kalahari manganese field: an update .............................'C h w an in g m ine, Kalahari m an g an ese field, C ape Province, South Africa. (See th e article in...d e r n M in e r a l C o l l e c t io n CURATION John Sampson White Department of Mineral Sciences Smithsonian...talks at shows and club meetings, conducting of field trips, behindthe-scenes tours, more exposure through |  | | Journal (issue) | | Photography by Jeff Scovil, Gerald Pauley, John Chapman, Stuart Humphreys, John Fields, Craig Bosel, Michael Stott...level, Zinc Corporation mine, Broken Hill, New South Wales, Australia. Collection of the Australian Museum;...Museum; ex Albert Chapman collection; John Fields photo. Back cover: Australian Gold: Top row from left:...Kalgoorlie, Western Australia; Lee Spencer collection, John Chapman photo. • 2.5 cm, Top Camp mine, Western...Family collection; John Chapman photo. • 1.4 cm, Chapman’s Gully, South Australia. South Australian Museum |  | | Report (issue) | | Manganese Chapter L of Critical Mineral Resources of the United States—Economic and Environmental Geology...titanium 47.88 vanadium 50.94 chromium 52.00 manganese 54.94 iron 55.85 cobalt 58.93 nickel 58.69...of the Mamatwan open pit mine in South Africa. The black manganese layer is about 45 meters thick and...(foreground). Photograph by William F. Cannon. Manganese By William F. Cannon, Bryn E. Kimball, and Lisa...Prospects for Future Supply Edited by Klaus J. Schulz, John H. DeYoung, Jr., Robert R. Seal II, and Dwight C |  | Cairncross, Bruce, Windisch, Wolfgang, Smit, Henk, Fraser, Allan, Gutzmer, Jens (2008) The Vergenoeg: Gauteng Province, South Africa Fluorite Mine. Rocks & Minerals, 83 (5) 410-421 doi:10.3200/rmin.83.5.410-421 | Journal (article/letter/editorial) | | August 2013 V E RG E N O E G GAUTENG PROVINCE, SOUTH AFRICA T FLUORITE MINE he Vergenoeg fluorite mine...mine is located in the Gauteng Province of South Africa, approximately 80 kilometers northeast of Pretoria...approximately 140 kilometers northeast of Johannesburg, South Africa. Access to the mine is easy via a paved road...Johannesburg, South Africa; brucec@uj.ac.za 2 932 Crots Street, Rietfontein, 0084, Pretoria, South Africa 3 PO...Pretoria, South Africa; smithj3@telkom.co.za 4 PO Box 369, Fourways, 2055, Gauteng, South Africa; mineralman@telkomsa |  | | Journal (article/letter/editorial) | | 523–536, 2016. XRD AND TEM STUDIES ON NANOPHASE MANGANESE OXIDES IN FRESHWATER FERROMANGANESE NODULES FROM...nodules, Fe-Mn nodules, and Fe-rich nodules. The manganese-bearing phases are todorokite, birnessite, and...(Amirzhanov et al., 1992; Tan et al., 2006), and Africa (Williams and Owen, 1992; Kalindekafe, 1993). However...nodules (Figures 1a, 1b, and 1c). Nodules from the northern area of Green Bay are primarily Fe-rich, whereas...quartz core. Vol. 64, No. 5, 2016 Nanophase manganese oxides from Lake Michigan were collected from |  | | Journal (issue) | | Carl A. Francis Maine Mineral & Gem Museum, ME John Rakovan New Mexico Institute of Mining & Technology...Bruce Cairncross, University of Johannesburg, South Africa Steven C. Chamberlain, Syracuse, NY Merrill...Thompson, Maine Geological Survey, Augusta, ME John S. White, Stewartstown, PA Social Media Editor Philip...Connoisseur's Choice: Aragonite Part 3: Southern Africa Bruce Cairncross and Malcolm Southwood 554 Collector's... Cary Freeman 558 Who's Who in Mineral Names: John C. Ebner Jr. (b. 1931) Ron Gibbs 560 The Where |  | Santos, Felipe Holanda dos, Amaral, Wagner da Silva, Konhauser, Kurt, Martins, Douglas Teixeira, Castro, Marco Paulo de, Queiroga, Glaucia Nascimento, Chi Fru, Ernest, Andersen, Morten B. (2021) Unraveling sedimentary precursors and metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern Brazil. Ore Geology Reviews, 137. 104283pp. doi:10.1016/j.oregeorev.2021.104283 | Journal (article/letter/editorial) | | metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern...Keywords: Paleoproterozoic Borborema Province Manganese ore Sedimentary protolith Anoxic sediments Amphibolite...conditions The Paleoproterozoic Lagoa do Riacho manganese deposit in the Borborema Province is central to...to unravelling the genesis of Paleoproterozoic manganese deposits, Paleoproterozoic redox evolution and...African Craton. With manganese contents averaging 35 wt%, the Lagoa do Riacho manganese unit is lithologically |  | | Journal (article/letter/editorial) | | chemistry of oxidefacies manganese ores of the Postmasburg manganese field, South Africa J. GUTZMERAND N. J...Park, 2006, South Africa Abstract The diagenetic to very low-grade metamorphic manganese ores of the...the Postmasburg manganese field provide a unique example of oxide-facies manganese ores in a Palaeoproterozoic...Transvaal Supergroup, manganese ore, Postmasburg, South Africa. Introduction TIlE manganese ores of the Postmasburg...Postmasburg manganese field (Fig. IA) are subdivided into ferruginous ores of the Westem Belt and siliceous |  | | Journal (issue) | | Collector Interview series we interview well known South African collector Bruce Cairncross. Bruce is a professor...of both the professional and the hobbyist in the field. Each issue delivers timely information on important...Praszkier (Poland) Associated Editors: Paul Cragan (USA John Veevaert (USA) Associated Photographer: Jeff Scovil...to most Westerners, lies 285 km away to the west-south-west. Momin Akhada is lo- “DISCO BALLS” FROM MOMIN...on stilbite from the first find in Momin Akhada, field of view 8 cm. S. Smale specimen. J. Scovil photo |  | | Journal (article/letter/editorial) | | SepteniberlOctober: Gold, Smuggler Union mine, Telluride district, Colorado. Colorado School of Mines Museum specimen...Project: Mining District Granted New Status, B. Rich, 402-3 Colorado, Telluride district, see Raines, E...Diamond, Jagersfontein Mine, Free State Province, South Africa, 344-49; Orpiment, Twin Creeks Mine, Humboldt...Humboldt County, Nevada, 112-14; Parisite, Muzo District, Colombia, 250-52; Smithsonite, Tsumeb, Namibia, 176-79...Garnet and Clinozoisite from the Nightingale Mining District, Pershing County, Nevada, 120-25 Cryptomelane |  | | Journal (article/letter/editorial) | | An example from the Abitibi greenstone belt of Northern Ontario—L. Prevec and W.A. Morris 963 Vol. 301...Double Issue on Steady-State Orogens: Concepts, Field Observatons, and Models F.J. Pazzaglia and PLK....principles modeling of the infrared spectrum of kaolinite— E. Balan, A.M. Saitta, F. Mauri, and G. Calas...using the weights-of-evidence model in a GIS, northern Sharhr-e-Babak, Iran— M.H. Tangestani and F. Moore...Basin dynamics and mineralisation, McArthur basin, northern Australia—J.F. Lindsay 703 Two age populations |  | | Journal (issue) | | net MARCH–APRIL 2019 Articles The Candelaria District Mineral County, Nevada ......................... Atacamite from the New Cornwall mine, Kadina, South Australia ........................................ 10.5 cm, from the New Cornwall mine, Kadina, South Australia. Collection of (and photo courtesy of)...Trust (2015–2018) Herb & Monika Obodda (2015–2018) John Dabney (2015–2018) FELLOWS Mark Hughston (2015–2018)...American Mineral Heritage Award for 2019, recognizing field-collecting contributions to the heritage of American |  | | Book | | Mountain, Alabama (by H. Harwood) 5:241-244 Iron-manganese phosphates of the Williams pegmatites, Coosa County...ANHAEUSSER. CARL R. --with B. Caimcross: Gold in South Africa 23:209-225. 23:228 Al 'JAJ\ABO~OINA The Anjanabonoina...California (by G. H. H. Muehle) 2:171-173 A.,rrno:-.-Y, JOHN w. The Mineral Museum of the University of Arizona...'\llMO~-Y PEAK Antimony Peak [California]: a rerun of a field trip I JO years later (by H. E. Pembenon) 3:78-8...Eq11ilibria in rite Earth; Moon Rocks and Minerals; Field Ion Microscopy; Crystals and X-rays; Co/or and Symmetry |  | | Book | | Struik Nature (an imprint of Penguin Random House South Africa (Pty) Ltd) Reg. No. 1953/000441/07 The Estuaries...Crescent), Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join...published edition, 2015: Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing editor:...Pretoria, South Africa Dr Lynnette Greyling Department of Geological Sciences University of Cape Town Private...Private Bag X3 Rondebosch 7701 Cape Town, South Africa Note: The authors and the publishers cannot be |  | | Journal (article/letter/editorial) | | Accepted Manuscript Urucum Neoproterozoic–Cambrian manganese deposits (MS, Brazil): Biogenic participation...Biondi, M. Lopez, Urucum Neoproterozoic–Cambrian manganese deposits (MS, Brazil): Biogenic participation...pertain. 1 1 Urucum Neoproterozoic–Cambrian manganese deposits (MS, Brazil): Biogenic 2 participation...Brazil) contains Neoproterozoic-Cambrian 11 manganese ore in the layers Mn-1, Mn-2, and Mn-3, which...seawater and 17 hydrothermalism began. Iron and manganese precipitated within the pores in arkosic 18 |  | | Journal (article/letter/editorial) | | Quarry MORE ON AFRICA: When the Tucson Gem and Mineral Show chose the Gems and Minerals of Africa as its theme...issue, one on the Kalahari manganese field and the other on the gemstones of Africa. (Should you want...features newly acquired gems and minerals from Africa, including aquamarine, garnet, and tourmaline gemstones...around the comer, we are grateful to executive editor John Rakovan for sharing the following with us: As part...senior research project with Professors John Hughes and John Rakovan at Miami, who agreed that Scott |  | De Putter, Thierry, Liégeois, Jean-Paul, Dewaele, Stijn, Cailteux, Jacques, Boyce, Adrian, Mees, Florias (2018) Paleoproterozoic manganese and base metals deposits at Kisenge-Kamata (Katanga, D.R. Congo) Ore Geology Reviews, 96. 181-200 doi:10.1016/j.oregeorev.2018.04.015 | Journal (article/letter/editorial) | | Accepted Manuscript Paleoproterozoic manganese and base metals deposits at Kisenge-Kamata Katanga, D...Cailteux, A. Boyce, F. Mees, Paleoproterozoic manganese and base metals deposits at Kisenge-Kamata Katanga...revised as ORGEO 2017-792 2 3 Paleoproterozoic manganese and base metals deposits at Kisenge-Kamata 4...3080 Tervuren, Belgium Royal Museum for Central Africa, Geodynamics and Mineral Resources, Leuvensesteenweg...Avenue, 14 15 Abstract 16 The Kisenge-Kamata manganese deposit (Katanga, D.R. Congo) belongs to a group |
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