 | | Journal (issue) | | Euclase, 2.3 cm, from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department, Colombia. Gail...Province, China. Keith & Diane Brownlee collection; Joe Budd photo. Tourmaline with cleavelandite, 4.3 cm...Mountains, Skardu district, Gilgit-Baltistan, Pakistan. Zach Goodman collection; Joe Budd photo. Middle...Ximeng County, Yunnan, China. Wally Mann collection; Joe Budd photo. Topaz, 2.6 cm, from Katlang, Mardan Dist...Jeff Starr collection; Joe Budd photo. Tanzanite, 7.6 cm, from the Merelani mine near Arusha, Tanzania |  | | Journal (issue) | | mines, Kalahari Manganese Field, Northern Cape Province, South Africa ..................................crystals on matrix, 17.2 cm, from the N’Chwaning I mine, collected in 1978. Private collection and photographer...(2015–2016) Scott A. Rudolph Paradise Woods (2008–2016) John Dabney (2015–2016) Daniel J. Record Irv Brown (2009–2015)...(2016–2017) Eric D. Long Barry M. & Beth Kitt (2011–2016) John Schneider (2016) Dylan Stolowitz Steve Maslansky...com APATITE Nagar, Hunza Valley, Gilgit District, Northern Areas, Pakistan, 11.5cm. Fine Minerals International |  | | Journal (article/letter/editorial) | | Olmiite N’Chwaning II Mine, Kalahari Manganese Field Republic of South Africa T here was a time when...Olmiite from its type locality, the N’Chwaning II mine, was initially identified as spectacular poldervaartite...MINERALS its own nearby type locality, the Wessels mine (Cairncross, Gutzmer, and Pretorius 2002). The...valuable poldervaartite specimens from the original Wessels mine discovery during the period of its supposed...continue to be recovered from the N’Chwaning II mine, Guest columnist Dr. Robert B. Cook, an executive |  | | Journal (article/letter/editorial) | | Inesite Wessels Mine, Northwest of Kuruman, Kalahari Manganese District Cape Province, South Africa I ...inesite: Broken Hill mines, New South Wales, Australia; Hale Creek mine, Trinity County, California; Kalahari...Kalahari manganese district, Cape Province, South Africa; and Fengjiashan mine, Hubei Province, China...China. Of these, the Wessels mine within the Kalahari manganese district has yielded a sufficient number of...stunning rhodochrosite that came from the same district. From a Historic Perspective Because inesite was |  | | Journal (article/letter/editorial) | | pluton, La Vallée-du-Richelieu Regional County Municipality, Montérégie, Québec, Canada, is part of the...(better known to collectors as the Kola Peninsula), northern region, Russia (Pekov 2000). The massif is a layered...minerals. The Shkatulka pegmatite in the Umbozero mine (now flooded), Alluaiv Mountain, has produced the...In the Sirenevaya pegmatite, also in the Umbozero mine, serandite occurs as clusters of semiparallel yellowish-pink...the Kedykverpakhk Mountain area of the Karnasurt mine, a remarkable assemblage of rare minerals has been |  | | Journal (issue) | | 85741 Editor & Publisher Wendell E. Wilson Founder John Sampson White Associate Editors Pierre Bariand Sorbonne...Zeolites and associated minerals from the Palabora mine, Transvaal........................................& R. S. W. Braithwaite The Lake George antimony mine, New Brunswick ..................... 263 by W. E...Kalahari m an g an ese field, C ape Province, South Africa. (See th e article in this issue, b eg in n...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 |  | | Journal (issue) | | affiliated with the Friends of Mineralogy publisher John S. White Division of Mineralogy The Smithsonian...Arthur Roe Famous Mineral Localities: The Brumado District, Bahia, Brazil..................................Thomssen, Walt Risch, Star Northam, Carolyn Wilson, John Muntyan and Wayne DeBrusk assisted with record keeping...Brazil) Pierre and Nellie Bariand (Paris, France) F. John Barlow (Appleton, WI) Ron Bentley (Windsor, CT)...Cureton, David Wilber, Miguel Romero, Richard Webster, John Barlow and Rustam Kothavala made cash donations |  | | Catalog/List | | indd 5 5 1/18/21 11:02 AM Quartz and Hematite Jinlong Iron Mine, Longchuan, Guangdong, China 7.5 cm tall...AM Malachite on Quartz with Shattuckite Omaue Mine, Opuwo Rural, Kunene Region, Namibia 7.6 cm tall... Aquamarine with Schorl and Quartz Shengus, Roundu District, Gilgit-Baltistan, Pakistan 7.6 cm tall x 15.2...1/18/21 11:02 AM Scheelite on Muscovite Pingwu Beryl Mine, Mt. Xuebaoding, Pingwu Co., Mianyang, Sichuan,...example, mined 25 years ago from the Pingwu Beryl Mine, is one of the most remarkable of the species. Scheelite |  | Gutzmmer, J., Beukes, N. J., Kleyenstuber, A. S. E., Burger, A. M. (1995) Magnetic hausmannite from hydrothermally altered manganese ore in the Palaeoproterozoic Kalahari manganese deposit, Transvaal Supergroup, South Africa. Mineralogical Magazine, 59 (397) 703-716 doi:10.1180/minmag.1995.059.397.12 | Journal (article/letter/editorial) | | Kalahari manganese deposit, Transvaal Supergroup, South Africa J. GUTZMER,N. J. BEUK~S Department of Geology...University, P.O.Box 524, Auckland Park 2006, South Africa A. S. E. KLEYENSTUBERANDA. M. BURGER MINTEK...MINTEK, Private Bag X3015, Randburg 2125, South Africa Abstract Hausmannite (Mn304), a manganese oxide with...ores of the giant Kalahari manganese deposit in South Africa. EDS-electron microprobe analyses indicate magnetic...composition, containing only a few minute inclusions of hematite. Magnetic blocking temperatures of the iron-rich |  | Moore, John M., Kuhn, Barbara K., Mark, Darren F., Tsikos, Harilaos (2011) A sugilite-bearing assemblage from the Wolhaarkop breccia, Bruce iron-ore mine, South Africa: Evidence for alkali metasomatism and 40Ar-39Ar dating. European Journal of Mineralogy, 23 (4) 661-673 doi:10.1127/0935-1221/2011/0023-2117 | Journal (article/letter/editorial) | | Bruce iron-ore mine, South Africa: Evidence for alkali metasomatism and 40Ar-39Ar dating JOHN M. MOORE1,...Geology, Rhodes University, Grahamstown 6140, South Africa *Corresponding author, e-mail: h.tsikos@ru.ac...breccia at the Bruce iron-ore mine, Northern Cape Province, South Africa. The upper portion of the breccia...Similarities to sugilite-bearing assemblages at the Wessels mine in the Kalahari Manganese Field suggest that...sugilite, alkali metasomatism, manganese, breccia, South Africa, 40Ar/39Ar dating, armbrusterite. 1. Introduction |  | | Journal (article/letter/editorial) | | Ettringite N’Chwaning II Mine, Northern Cape Province Republic of South Africa C oncrete, that manmade...N’Chwaning II mine, Kalahari manganese field, Northern Cape Province, Republic of South Africa. This specimen...to 2 mm, some associated with calcite. The Clara mine, Ober Wolfach, Schwarzwald (Black Forest), Baden-Württemberg...(1984) notes that ettringite crystals from the Clara mine may be mistaken for aragonite, and vice versa. Italy...N’Chwaning II mine, Kalahari manganese field, Northern Cape Province, Republic of South Africa. Scott Rudolph |  | | Journal (article/letter/editorial) | | PO Box 524, Auckland Park 2006 Johannesburg, South Africa brucec@uj.ac.za Lucas Becker photo. T Jacobus...N’Chwaning III mine in the Kalahari manganese field, Northern Cape Province, South Africa. Crystals are...crystals, white pectolite, lipuite, braunite-II, hematite, and microscopic namansilite and norrishite (https://www...180 ROCKS & MINERALS aniajacoite is named after South African married couple Jacobus “Jaco” Stephanus...Heidelberg in what was then the Transvaal Province, South Africa, and grew up on a farm located between Bethal |  | | 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 (article/letter/editorial) | | Johannesburg, South Africa brucec@uj.ac.za Shigaite Kalahari Manganese Field Northern Cape Province, South Africa...described and named from the type locality, the Ioi mine in Shiga Prefecture, Japan (Peacor et al. 1985)...Eyre Peninsula, South Australia, Australia (Pring, Slade, and Birch 1992), the Wessels and N’Chwaning...in the Kalahari manganese field, Northern Cape Province, South Africa (Cairncross and Balayer 2007; Cairncross...Japan (Peacor et al. 1985); and arsenoclasite, hematite, hausmannite, barite, and gypsum from the Iron |  | | Journal (article/letter/editorial) | | ames Figure 1. Location map showing the Wessels mine in South Africa, prepared by William Besse. BRUCE CAIRNCROSS...Johannesburg, South Africa brucec@uj.ac.za Wesselsite Wessels Mine Kalahari Manganese Field South Africa Figure...Figure 2. The Wessels mine in the middle distance, as seen looking east from Black Rock hill. Part of Black...Black Rock mine village is in the foreground. Bruce Cairncross photo, November 2011. 282 ROCKS & MINERALS...discovery. The specimen was obtained from the late John Veevaert who had the material quantitatively identified |  | | Journal (article/letter/editorial) | | Mineralization in the Kalahari Manganese Field, South Africa D. A. D. EVANS,† Tectonics Special Research...University, Auckland Park 2006, Johannesburg, South Africa AND J. L. KIRSCHVINK Division of Geological...enrichment in the Kalahari manganese field, South Africa, in order to assess mineralogical aspects of...remanence direction (MAM-1), associated with “dusty” hematite inclusions (1–10 µm) that are omnipresent in the...carried by recrystallized hematite (20–250 µm), within both Mamatwan- and Wessels-type ore, generates a paleomagnetic |  | | Journal (issue) | | cm, from Gerensegen, Schwarzwald, Germany. (10) Hematite “iron rose,” 3 cm, from St. Gotthard, Switzerland...the Unificada mine, Potosi, Bolivia. Top right: Benitoite, 2 cm, from the Benitoite Gem mine, California...N‘Chwaning I mine, Kuruman, South Africa. Bottom right: Mimetite, 2.7 cm, from the Tsumeb mine, Namibia....Record: (1) Stephanite, Husky mine, Canada. (2) Wulfenite, Rowley mine, Arizona. (3) Diaspore twin, Pinarcik...Adelaide mine, Tasmania. (5) Andradite, Antetezambato, Madagascar. (6) Calcite, Mashamba West mine, Congo |  | | Journal (article/letter/editorial) | | Prehnite from the Kalahari manganese field, South Africa, and its possible implications B. Cairncross... 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...Prehnite is described herein from the N’Chwaning II mine, Kalahari manganese field for the first time. The...manganese mines of the Kalahari manganese field in South Africa (Figure 1) are well-known for their suite of |  | | Journal (article/letter/editorial) | | University RO. Box 524 AucWand Park, 2006 Gauteng, South Africa . . .*.’. Corresponding author: bc @na.rau...just south of the great Kalahari Desert on the vast plains of the Northern Cape Province of South Africa...the world’s finest specimens of rhodochrosite, hematite, hausmannite. sturmanite. and other species. ...of the Transvaal Supergroup rocks (black) in South Africa. B: Enlarged portion of Griqualand West showing...and one of the few economic centers of the Northern Cape Province. Kuruman is also the preferred home |  | 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) | | Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa Brenton J. Fairey 1,† , Martin J...Geology, Rhodes University, Grahamstown 6139, South Africa Correspondence: h.tsikos@ru.ac.za Current address:...Postmasburg Manganese Field (PMF), Northern Cape Province, South Africa, once represented one of the largest...Postmasburg manganese field; hydrothermal; karst; South Africa Minerals 2019, 9, 408; doi:10.3390/min9070408...(KMF), the Postmasburg Manganese Field (PMF) was South Africa’s largest producer of this important component |  | | Journal (article/letter/editorial) | | Deposit—Kalahari Manganese Ore Field (Northern Cape, South Africa): Geochemistry of Isotopes (δ13C and...1134/S0024490212030054 The Northern Cape manganese ore province (South Africa) is confined to the Kalahari...field under operation (Mamat wan, Black Rock, Wessels, Gloria, and others) have been scrutinized, the...Manganese ores of the Kalahari Desert (Northern Cape province, South Africa) are confined to rocks of the Hotazel...Supergroup (Fig. 2). At ore deposits in the Northern Cape province, the Early Proterozoic section of the |  | | 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...8(1):3-8 Secondary copper minerals of the Crusader mine, north-west Queensland. Sharpe, James L. and Williams...suite of secondary minerals from the Nifty copper mine, Western Australia. Downes, P.J., Shields, P. and...ribbons associated with thomsonite from Borambil, New South Wales. Graham, Ian T. and Pogson, Ross E. 7(2):S7-61 |  | Gu, Xiangping, Yang, Hexiong, Xie, Xiande, van Nieuwenhuizen, Jaco J., Downs, Robert T., Evans, Stanley H. (2019) Lipuite, a new manganese phyllosilicate mineral from the N'Chwaning III mine, Kalahari Manganese Fields, South Africa. Mineralogical Magazine, 83 (5) 645-654 doi:10.1180/mgm.2019.12 | Journal (article/letter/editorial) | | mineral from the N’Chwaning III mine, Kalahari Manganese Fields, South Africa Xiangping Gu*1 , Hexiong Yang2...School of Geosciences and Info-Physics, Central South University, Changsha, Hunan 410083, China; 2Department...and 4Plot 968, Alheit, Kakamas 8870, Northern Cape, South Africa Abstract A new phyllosilicate mineral...N’Chwaning III mine, Kalahari Manganese Fields, Northern Cape Province, Republic of South Africa. It occurs...Kalahari Manganese Fields in the North Cape Province of South Africa hosts the largest manganese resource |  | | Journal (article/letter/editorial) | | Enrichment in the Kalahari Manganese Field, South Africa: A new discrimination scheme for Kalahari manganese...Department of Geology, University of Johannesburg, South Africa University College Dublin (UCD), School of Earth...Mamatwan Mukulu Hydrothermal Supergene Unconformity Wessels The Thrusted manganese ore above the Blackridge...Manganese Field, South Africa has undergone three significant alterations events, namely the Wessels alteration...Mamatwan-type manganese ore from Mamatwan mine in the south of the Kalahari Manganese Field as a reference |  | | Journal (article/letter/editorial) | | consisting mainlyofbraunite,hausmannite, jacobsite,hematite,kutnohorite,andcalcite, are alteredby hydrothermalsolutionsinto...high-temperature Wessels-type oresconsistingof brauniteII, bixbyite,hausmannite,hematite,calcite, and andraditewith...definedby the assemblage hausmannite-jacobsite-hematite to that definedby the assemblage bixbyite-hausmannite...brauniteis muchlessabundant in the high-grade Wessels-type ore thanin theIgw-grade Mamatwan-type ore...ProterozoicTransvaalSupergroup in the northern Cape Province, South Africa (Fig. 1A),mostprobablyrepresents |
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Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa