 | | 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) | | 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)...San Jose, CA) Forrest Cureton II (Stockton, CA) Rock Currier (Jewel Tunnel Imports; Arca dia, CA) Wayne |  | | 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 |  | | Report (volume) | | Pago (A) Manganese carbonate in the Batesville district, Arkansas, by Hugh D. Miser, with a chapter on...Geology and oil and coal resources of the region south of Cody, Park County, Wyoming, by W. G. Pierce and...ILLUSTRATIONS Pago PLATE 1. Geologic map of Batesville district, Arkansas. In pocket 2. Polished surface of gray...ore from Club House mine; B, Polished surface of ore from Woodpecker Hollow mine _ 18 4. A, Thin section...section of ore from Woodpecker Hollow mine; B, Thin section of ore from Pittman mine____ ___ _ 18 5. Polished |  | 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) | | Magnetic hausmannite from hydrothermally altered manganese ore in the Palaeoproterozoic Kalahari manganese...manganese deposit, Transvaal Supergroup, South Africa J. GUTZMER,N. J. BEUK~S Department of Geology, Rand...University, P.O.Box 524, Auckland Park 2006, South Africa A. S. E. KLEYENSTUBERANDA. M. BURGER MINTEK...Private Bag X3015, Randburg 2125, South Africa Abstract Hausmannite (Mn304), a manganese oxide with a...temperature of 42.5 K. However, strongly magnetic hausmannite has been discovered in some of the hydrothermally |  | | 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...contact-metamorphosed limestones or in xenoliths within igneous rock bodies. It has also been found as weathering crusts...leucite-nephlinetephrite (fine-grained volcanic rock) from Ettringen, Eifel, Rhineland-Palatinate, Germany...associated with calcite. The Clara mine, Ober Wolfach, Schwarzwald (Black Forest), Baden-Württemberg, is |  | | 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...the Kalahari field under operation (Mamat wan, Black Rock, Wessels, Gloria, and others) have been scrutinized...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) | | 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...finest specimens of rhodochrosite, hematite, hausmannite. sturmanite. and other species. Location The...distribution of the Transvaal Supergroup rocks (black) in South Africa. B: Enlarged portion of Griqualand West...and one of the few economic centers of the Northern Cape Province. Kuruman is also the preferred home |  | | Journal (article/letter/editorial) | | Geology VoL 67, 1972, pp. 83-102 Manganite, Hausmannite, Braunite: Features, Modes of Origin D. F....fairly common. manganeseoxide minerals, manganite,hausmannite,and braunire. The study includesthe precisedeterminationof...minerals, the ganeseoxide minerals,manganite,hausmannite, and writer hasgenerallyacceptedthe interpretationof...puremineralwereavailable. supergene. Veins of manganite, hausmannite,or Fortunately,the development, sinceabout1940...carbonate;rarely, it results from Table 1, DFH-169). In this mine, somelayers m chocolate-brown plumo• supergene alterationof |  | | Journal (article/letter/editorial) | | Wessels Mine, Northwest of Kuruman, Kalahari Manganese District Cape Province, South Africa I t was...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 |  | 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 a single...sugilite, alkali metasomatism, manganese, breccia, South Africa, 40Ar/39Ar dating, armbrusterite. 1. Introduction |  | | Journal (article/letter/editorial) | | bixbyite were, either wholly or in part, replacedby hausmannite. This last observation leads to the conclusion...oxidizingenvironmentafter longerosionof the country,hausmannite q- jacobsite= peroxideoressuchasthosefoundat...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 .• •:•:•:•:•:•:•:•:•:•...:.78.;3.o, ................ ..... :.' ß :.... rock type represented.The isotopicage of the lava hasbeen |  | | Journal (article/letter/editorial) | | 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...Wessels mine in the middle distance, as seen looking east from Black Rock hill. Part of Black Rock mine...discovery. The specimen was obtained from the late John Veevaert who had the material quantitatively identified... and named for, the Wessels mine, Kalahari manganese field, South Africa (Giester and Rieck 1996). Other |  | Tsikos, H., Beukes, N. J., Moore, J. M., Harris, C. (2003) Deposition, Diagenesis, and Secondary Enrichment of Metals inthe Paleoproterozoic Hotazel Iron Formation, Kalahari Manganese Field, SouthAfrica. Economic Geology, 98 (7) 1449-1462 doi:10.2113/gsecongeo.98.7.1449 | Journal (article/letter/editorial) | | Hotazel Iron Formation, Kalahari Manganese Field, South Africa HARILAOS TSIKOS,†,* NICOLAS J. BEUKES, Geology...2006, South Africa JOHN M. MOORE, Geology Department, Rhodes University, Grahamstown 6140, South Africa...Geological Sciences, University of Cape Town, Rondenbosch 7700, South Africa Abstract The Kalahari manganese...manganese field in the Northern Cape province, South Africa, is a world-class manganese resource (ca. 8 billion...two areas of the Kalahari manganese field, in the south and in the north of the field, which respectively |  | | 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...high-grade Wessels-type ore, rich in high Fe hausmannite and coarser hematite (0.1–1.0 mm), in the immediate...replacement of kutnahorite by a first generation of hausmannite (Mn3O4), accompanied by some recrystallized hematite |  | | Journal (article/letter/editorial) | | manganese ore in the Kalahari manganese ®eld, South Africa Received: 28 May 1996 / Accepted: 22 January...giant Kalahari manganese ®eld (Fig. 1) highgrade hausmannite-rich Wessels-type ore (KleyenstuÈber 1984) formed...lutite to values of 45±60 wt.% in carbonate-poor hausmannite-rich ores remains uncertain. Part of the upgrading...University, PO Box 524, Auckland Park 2006, South Africa e-mail: JG@RAU3. RAU.AC.ZA Fax: 0027-11-489-2309...changes from braunite II-hausmannite and hausmannitebixbyite-braunite II to hausmannite-rich ore (Fig. 2A) |  | | Journal (article/letter/editorial) | | paperthereis addeda shortreviewof a number of hausmannite occurrences; alsothereis includeda summary of...examinedcriticallyincludemanganite, pyrolusite,hausmannite, braunite,andbementite;psilomelane and wad were...etchesblack. Producesexcessive etching. Washesand rubs to black deeplyetchedsurface. FeCl•--similarto SnCI• but...exhibit twinning. Analysis7 of the specimenfrom Cape Breton gives: Fe203 ............... MnO .........limohire and water. The0retieal amount of M.nO in hausmannite--- 93.0•5 per cent. 9 C. Doelter, "Handbueh der |  | | Report (volume) | | ........................... North Carolina and South Carolina.............................. Georgia.................................... Cartersville district.................................................................................. Cave Spring district.................................................region................................ Batesville district.................................................................................. 132 Butte district.............................................. |  | | Journal (issue) | | A THE rkenstone www.iRocks.com Photos by Joe Budd mineralauctions Over 100 pieces auctioned off...and Siderite Photo by Joe Budd Page 1 Mines and Minerals of the Långban District, Filipstad, Värmland...Tucson, Arizona Mines and Minerals of the Långban District, Filipstad, Värmland Sweden: Scandinav ia’s Mineralogical...Philip.m.persson@gmail.com The Långban Fe-Mn mining district, situated near the small city of Filipstad in...mineral assemblages of the Långban deposits, and the district continues to attract scientists and collectors |  | | Journal (issue) | | 0263 7839 FRONT COVER: Calcite crystals, Bigrigg Mine, Egremont, Cumbria, U.K. (National Museum of Wales...Alstonite and 'Barytocalcite from L1antrisant, South Wales, and Barytocalcite from Holwell, Mendip Hills...Minerals in Microdiorite from the English Lake District N.J. Fortey and P.H.A. Nancarrow 15 Schulenbergite...Schulenbergite and Namuwite from Smal\cleugh Mine, Nenthead, Cumbria A. Livingstone, T.F. Bridges and R.E. Bevins...Cooper, P.H.A. Nancarrow and D.I. Green 25 Hausmannite from West Cumbria B. Young and P.H.A. Nancarrow |  | | Journal (article/letter/editorial) | | 72:168-172. mixed the two localities. The Boldut mine is well known for dozens of carainels (a typical...at 8,000 DM. colors: yellowish, red, blue, and black. Sometimes the barite is associated with pyrite...Germany) offered rhodochrosite from the Sweet Home mine, Alma, Colorado. Most of the samples came from the...limelight. Jordi Fnbre (C/Arc de Sant Marti 79 Local, 08032 Barcelona, Spain), Figure 7. Gypsum, 13 by...Romania, including superb calcites from the Boldut mine, in Azerbaidjan, and he explained to me how difficult |  | | Journal (article/letter/editorial) | | als of the ores,namely,braunite,brauniteII, hausmannite, bixbyite,jacobsite,andhematite,and were con...metamorphic)Mamatwan-type ores,consisting mainlyofbraunite,hausmannite, jacobsite,hematite,kutnohorite,andcalcite, are...Wessels-type oresconsistingof brauniteII, bixbyite,hausmannite,hematite,calcite, and andraditewith traceamountsof...assemblage hausmannite-jacobsite-hematite to that definedby the assemblage bixbyite-hausmannite, with i...ProterozoicTransvaalSupergroup in the northern Cape Province, South Africa (Fig. 1A),mostprobablyrepresents |  | | Report (issue) | | COVER Left: Right: ' Native gold, Goldenville Mine, Sherbrooke, Nova Scotia. Specimen measures 18 mm... Gary Ansell. Arsenopyrite crystal, Goldenville Mine, Sherbrooke, Nova Scotia. Crystal measures ! 6 mm...THE COLLECTOR ., '1'· Northeastern Nova Scotia~~·Cape Breton Island, and Prince Edward Island Ann P....quarry Lake Catcha gold mines Dunbrack mine Lake Charlotte mine Tangier gold mines Mooseland gold mines...mines Moose River gold mines Moose River tungsten mine Harrigan Cove gold mines Goldenville (Sherbrooke) |  | | Report (issue) | | 97 Bay of Fundy, New Brunswick and Nova Scotia; South Shore, Nova Scotia Ann P. Sabina 2015 Ann P....COLLECTOR: Bay of Fundy, New Brunswick and Nova Scotia; South Shore, Nova Scotia Ann P. Sabina 2015 i ©Her.......................4 Todd (St. Stephen Nickel) mine......................................................................10 Blakeney (Basswood Ridge) mine.......................................................................................15 Bayside Black Granite quarry................................. |  | | Report (issue) | | Lopez district, Socorro County, New Mexico--------------------------------Arlington district, Riverside...California ------ -----------------------Aguila district, Maricopa County, Arizona -Conclusions ------...manganese in the Southwestern United States and northern Mexico------------------------------------------...analyses of hollandite from the Black Canyon (Gianera) shaft, Luis Lopez district, New Mexico -------------...veins explored for either fluorite or barite have local shoots of base-metal sulfide minerals large enough |
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Black Rock Mine, Black Rock, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa