 | | 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 (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) | | 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 | | 1/18/21 11:02 AM Quartz and Hematite Jinlong Iron Mine, Longchuan, Guangdong, China 7.5 cm tall x 11 cm...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 |  | | 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 (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) | | 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...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...live in the mine villages of Hotazel and Black Rock. These were established by SAMANCOR (South African Manganese |  | | Journal (article/letter/editorial) | | 2006 Johannesburg, South Africa brucec@uj.ac.za Hausmannite N’Chwaning II Mine, Kalahari Manganese...Manganese Field Northern Cape Province, South Africa B lack minerals are generally not considered highly desirable...hausmannite is Öhrenstock, Langewiesen, Ilmenau district, Thuringian Forest, Thuringia, Germany. Originally...locality perhaps more famous for world-class manganite, also produced specimens. Some of the Ilfeld hausmannite...black, prismatic hausmannite pseudomorphs after manganite to 3 cm on a manganese oxide matrix (Färber 2010) |  | | Journal (issue) | | Bryan K. Lees (2008) Stephen Neely (2008) Anne & Joe Ondraka (2008) Daniel Trinchillo (2008) Stuart Wilensky...Robinson Correspondents Dudley Blauwet Renato Pagano Joe Polityka Associate Photographers Jeffrey A. Scovil...Famous mineral localities: The Königskrone topaz mine, Schneckenstein, Saxony, Germany . . . . . . . ...Kalahari Manganese Field, Northern Cape Province, Republic of South Africa . . . . . . . . . 373 by R.... . . . . . . . . 350 by C. J. Stanley Founder John Sampson White Editing & Advertising 4631 Paseo Tubutama |  | 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...KEYWOm3S:hausmannite, Kalahari manganese field, Wessels mine, ferrimagnetism, iron content. Introduction |  | | 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...hematite (20–250 µm), within both Mamatwan- and Wessels-type ore, generates a paleomagnetic pole (present...sample suite (WESS) is restricted to high-grade Wessels-type ore, rich in high Fe hausmannite and coarser |  | | 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) | | needle-pointed crystals from the Kalahari Desert of Africa. Few carvings are as vibrantly colorful as the...Home Sweet Home mine, A l m a , Colorado; and the N'Chwaning mine, Kuruman, South Africa. These localities...the N'Chwaning mine, Black Rock district, Hotazel, North Cape Province, South Africa. Pala Properties...Colorado, beginning with the superb finds at the John Reed mine, Alicanti, near Leadville (Kunz, 1887), rhodochrosite..."gathering" of rhodochrosite from the N'Chwaning mine, South Africa, as seen at the 1981 show. Photo by Robert |  | | 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 (article/letter/editorial) | | Johannesburg South Africa brucec@uj.ac.za Figure 1. Location of N’Chwaning mine in South Africa; map prepared...of view 1.7 cm, N’Chwaning II mine, Kalahari manganese field, South Africa. Bruce Cairncross specimen and... Nchwaningite N’Chwaning II Mine, Kalahari Manganese Field South Africa N chwaningite, Mn22+SiO3(OH)2·H2O...N’Chwaning II mine (Nyfeler et al. 1995). Later specimens were also identified from the adjacent Wessels mine...calcite, bultfonteinite, and chlorite. At the Wessels mine, nchwaningite was associated with calcite and |  | | Journal (article/letter/editorial) | | oxymica associated with sugilite from the Wessels Mine, South Africa: Crystal chemistry and 40Ar-39Ar dating...silicate-rich sample from the Wessels mine, Kalahari manganese field, South Africa. The mineral forms centimeter-sized...submarine exhalative origin of the Hoskins mine in New South Wales, Australia (Ashley 1986; Eggleton and...occurring in pockets in the Wessels mine, Kalahari Mn field, South Africa (e.g., Cairncross et al. 1997)...mainly of hausmannite, bixbyite, braunite, and manganite. Within the ore-rich zones are silicate-rich pockets |  | | Journal (article/letter/editorial) | | sedimentary manganese orehasbeenupgraded to high-grade Wessels-type orein theKalahari manganese field.Thealteration...smallhill near Hotazel, at what is now the Black Rock mine orearepoorlyunderstood. In addition, theeffectofferrugini-...manganesemum known thickness of about 45 m at the Mamatwan mine ore (Gutzmer, 1993; Gutzmer and Beukes,1993). andranges...sedimentary structures ranges fromgoodtoabsent in Wessels-type ore.Transitions fromWessels-type oreto low-grade...Leinster-Deposi! fields are listed in Table 2. ISevern Wessels-type oreappears toberestricted tothenorthwesternpartoftheKalahari |  | | Journal (article/letter/editorial) | | minerals(Hew- portant contributionshave been made by John de ett and Fleischer,1960), and the GriqualandWest...0861-0128/88/192/1108-1152.50 Mn DEPOSITS, SOUTH AFRICA 1109 Geologic Framework .• •:•:•:•:•:•:•:•:•:•...Stellenbosch). 1110 j. E. DE VILLIERS proximatelynorth-south,and regionalshearingand (includingmetamorphic deposits)...became cov- group includespyrolusite,ramsdellite,manganite, ered with surface limestone and sand, and these...Morocco,for instance,hausmanniteand janekke,70 km south-southwest of Postmasburg. It was cobsiteoccurin |  | | Report (issue) | | (CO3 )0.95 [O2.78 (OH)0.22 ]Σ=3.00 . (2) Wessels mine, South Africa; by electron microprobe, corresponding...hydrogrossular, manganite, bixbyite, braunite, hausmannite, hematite (Kuruman district, South Africa). Distribution:...Tachgagalt, 17 km south-southwest of Ouarzazate, Anti-Atlas Mountains, Morocco. At the Wessels and N’Chwaning...N’Chwaning mines, near Kuruman, Cape Province, South Africa. Name: Honors Abbé Christophe Gaudefroy (1888–1971)...Gaudefroyite from the Kalahari manganese field, South Africa. Neues Jahrb. Mineral., Monatsh., 385–392. (4) |  | | Journal (article/letter/editorial) | | Sweden (Sverige) Gladhammar mine, nickel-rich carrollite, 737 Harstig mine, Pajsberg, sarkinite, 681 Norr6...Norr6, arrojadite (hiihnerkobelite), 23o Sjo mine, Grythytte Parish, Orebro, xantharsenite, polyarsenite...analcime, 76I Castleton, Derbyshire, fluorite (Blue John), 243 Crook Hill brickyard, Cbickerell, near Weymouth...Cornwall, luxullianite, 441; 442 Scar Crag, Lake District, arsenopyrite, alloclase, glaucodot, cobaltian...Court farm, Ramsgate, Kent, chalk, i6o Tynebottom mine, Garrigill, Cumbria, arsenical marcasite, gersdorffite |  | | Report (issue) | | Pattern: N’Chwaning III mine, Northern Cape Province, Republic of South Africa. 2.895 (100), 2.713 (53)...2O. (2) N’Chwaning III mine, Northern Cape Province, Republic of South Africa; average electron microprobe...high-grade Wessels-type Mn ore, mainly hausmannite, bixbyite, braunite-II, and manganite, formed by structurally...N’Chwaning III mine, Kalahari Manganese Fields, Northern Cape Province, Republic of South Africa. Name: Honors...mineral from the N'Chwaning III mine, Kalahari Manganese Fields, South Africa. Mineral. Mag., 83, 645-654 |  | | Journal (article/letter/editorial) | | to ensure that labeling is consistent with the local judging rules. For the systematic collector, and...Muscovite crystals forming a 10-cm rosette, Jose Pinto mine, Minas Gerais, Brazil. Table 3. Interlayer-deficient...spectacular recent find of muscovite was at the Jose Pinto mine, where more than a ton of beautifully crystallized...pink (manganoan) varieties are found at the Harding mine, Taos County, New Mexico (Jahns and Ewing 1977)...forms huge crystals. At Slyudyanka, Lake Baikal district, Russia, it forms large, dark red-brown (but surprisingly |  | 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 |  | | Report (issue) | | c = 2.870 Z=4 X-ray Powder Pattern: Sagamore mine, Minnesota, USA. 4.17 (10), 2.798 (6), 2.675 (6)...66 9.10 10.24 Total [99.70] 100.00 (1) Mahnomen mine, Minnesota, USA; after correction for quartz 2.39%...MnO(OH). Polymorphism & Series: Trimorphous with manganite and feitknechtite. Occurrence: A secondary mineral...hydrothermal orebodies (Arizona, USA). Association: Manganite, hematite, goethite, lepidocrocite, quartz, calcite...No. Two and One Half mine, Talcville, New York. In Arizona, in the Campbell mine, Bisbee, Cochise Co.; |  | | Journal (issue) | | (a variety of zoisite), 9 cm, from the Merelani mine, located on the slopes of the Lelatema Mountains...cover: Top left: Euclase, 2.2 cm, from the La Marina mine, Colombia. Top right: Topaz, 8.4 cm, from Ouro Preto...left: Phosphophyllite, 2 cm, from the Unificada mine, Potosi, Bolivia. Bottom right: Grossular, 3.5 cm...Fluorapatite on elbaite, 5.5 cm, from the Alto da Cabeca mine, Parelhas, Rio Grande do Norte, Brazil. Will Johnson...discovery of morganite at the famous Corrego do Urucum mine in 1973. Will Johnson collection (I had to trade |
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Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa