 | 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) | | breccia, 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...chert breccia at the Bruce iron-ore mine, Northern Cape Province, South Africa. The upper portion of...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) | | CONNOISSEUR'S CHOICE BRUCE CAIRNCROSS Department of Geology University of Johannesburg PO Box 524, Auckland...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...and interest. Such a mineral is hausmannite. N’Chwaning II hausmannite is the featured species of this...species such as andradite, datolite, and calcite. Hausmannite is widespread in manganese deposits globally |  | | Journal (article/letter/editorial) | | CONNOISSEUR'S CHOICE BRUCE CAIRNCROSS Downloaded by [University of Saskatchewan Library] at 03:49 02...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)...2013), the Iron Monarch deposit, Eyre Peninsula, South Australia, Australia (Pring, Slade, and Birch 1992)...in the Kalahari manganese field, Northern Cape Province, South Africa (Cairncross and Balayer 2007; Cairncross |  | | 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)...(2011–2016) John Schneider (2016) Dylan Stolowitz Steve Maslansky (2010–2016) Steven M. Goldfine & Bruce Carter...com APATITE Nagar, Hunza Valley, Gilgit District, Northern Areas, Pakistan, 11.5cm. Fine Minerals International |  | | 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...ettringite in association with lustrous calcites. Bruce Cairncross specimen and photo. Volume 87, September/October...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 |  | 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) | | THE POSTMASBURG MANGANESE FIELD, NORTHERN CAPE PROVINCE, SOUTH AFRICA GELU COSTIN Department of Geology...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...University of Johannesburg, Johannesburg, South Africa ABSTRACT Samples of manganese-rich rock containing...from the Postmasburg area in the Northern Cape Province of South Africa. The samples consist of fine-grained |  | | Journal (issue) | | Euclase, 2.3 cm, from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department, Colombia. Gail...cm, from Stak Nala, Haramosh Mountains, Skardu district, Gilgit-Baltistan, Pakistan. Zach Goodman collection;...Budd photo. Tanzanite, 7.6 cm, from the Merelani mine near Arusha, Tanzania. Barry & Beth Kitt collection;...Fluorite on quartz, 13 cm, from the Yaogangxian mine, Chenzhou Prefecture, Hunan Province, China. The...Spodumene (variety kunzite), 9 cm, from the Urucum mine, Galiléia, Minas Gerais, Brazil. Gus & Jane Eifler |  | | Journal (article/letter/editorial) | | University Libraries] at 08:59 17 November 2014 BRUCE CAIRNCROSS Department of Geology Rand Afrikaans...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...Departinelit of Geology at Rand Afrihwans University. Bruce Cairncross. a consulting editor of Rocks & Minerals |  | | Journal (article/letter/editorial) | | map showing the Wessels mine in South Africa, prepared by William Besse. BRUCE CAIRNCROSS Department...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 (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 |  | | Journal (article/letter/editorial) | | from the Kalahari Manganese Field Northern Cape Province South Africa R. PETER RICHARDS Department of...hematite from the Kalahari manganese field in South Africa, which are beautiful and rare examples of twinning...by penetration on {001}, from Ightem, Bou Azer district, Morocco. Field of view is 0.22 mm. Georges Favreau...associated with volcanic deposits in the Eifel district and on Mount Etna. The large diamond-shaped faces...After searching the Internet and consulting with local experts and dealers, we believe that there have |  | | 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) | | 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...(8) Scorodite, Tsumeb mine, Namibia. (9) Shigaite, N’Chwaning II mine, South Africa. v This special supplement |  | | Journal (article/letter/editorial) | | W ho’s W ho in Mineral Names BRUCE CAIRNCROSS Department of Geology University of Johannesburg PO Box...Box 524, Auckland Park 2006 Johannesburg, South Africa brucec@uj.ac.za D Roy McGillivray Miller (b....lead-rich assemblage of minerals from the Kombat mine in Namibia (Chukanov et al. 2017). Roymillerite...cerussite, iron-manganese oxides, grootfonteinite, hausmannite, jacobsite, melanotekite, rhodochrosite, and...relationship contrasts with two other associated Kombat mine type-species: grootfonteinite, which occurs mainly |  | | 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 |  | | Book | | 2. Model Test Area: Moanda Deposit, Gabon, West Africa 2.2.2.1. Introduction 20 20 23 23 23 25 25 27...Postmasburg Region, Griqualand West, Cape Province, South Africa 3.3.1. Geological Setting 3.3.2. Genesis...Manganese Ore Formation Manganese Ore Deposits of North Africa: Imini, Morocco 3.4.1. Geological Setting 3.4.2...ancient glaciers, and the glaciation epoch of the northern countries - in Scotland, in Scandinavia, in Finland...northeastern part of Russia, in states of Canada and the Northern Ameriea - they are found here in rivers, where |  | | Journal (article/letter/editorial) | | CONNOISSEUR'S CHOICE BRUCE CAIRNCROSS Department of Geology University of Johannesburg PO Box 524, Auckland...Park 2006 Johannesburg, South Africa brucec@uj.ac.za Hydrocerussite Tsumeb Mine, Namibia W hite minerals...hydrocerussite become more desirable. The Tsumeb mine, in particular, is world famous for its magnificent...only 18 of hydrocerussite. This is because Tsumeb mine, Namibia, hydrocerussite occurs as an alteration...hydrocerussite chosen here (figs. 1 and 2), from the Tsumeb mine, was formed by the alteration of cerussite. However |  | | Journal (issue) | | 2019 Articles Pyrosmalite-(Fe) from the Bjelke mine, Nordmark, Filipstad, Värmland, Sweden ...........PYROSMALITE(Fe) crystals on matrix, 7 cm, from the Bjelke mine, Sweden. Mim Mineralogical Museum collection, Beirut...Davis (2010–2019) Barry M. & Beth Kitt (2011–2018) Bruce Carter (2012–2019) Wally Mann (2012–2019) George...Trust (2015–2018) Herb & Monika Obodda (2015–2018) John Dabney (2015–2019) Mark Hughston (2015–2018) Jeff...Mineral Services, LLC (2019) John C. Medici (2019) Ian and Diana Bruce (2019) Marc and Janis Countiss |  | | Book | | Understanding Minerals & Crystals Bruce Cairncross Terence McCarthy Published by Struik Nature (an...(an imprint of Penguin Random House South Africa (Pty) Ltd) Reg. No. 1953/000441/07 The Estuaries No 4...Crescent), Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join...text, 2015: Bruce Cairncross and Terence McCarthy Copyright © in photographs, 2015: Bruce Cairncross,...published edition, 2015: Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing editor: |  | | Journal (article/letter/editorial) | | 28 Ventnor Avenue, West Perth, WA 6005, Australia John de Laeter Centre of Mass Spectrometry, Curtin University...fault-hosted manganese deposits at the Woodie Woodie Mine, East Pilbara, are predominantly hydrothermal in...which down-throw the Pinjian Chert Breccia into local extensional basins. Manganese ore bodies are typically...braunite–pyrolusite–cryptomelane–todorokite–hausmannite, overprinted by late supergene oxides. Preliminary...on manganese ore distribution. The Woodie Woodie mine corridor is located in a zone of oblique strike-slip |  | | Journal (article/letter/editorial) | | 2014 The Manganese AdventureThe South African Manganese Fie/ds by Bruce Cairncross, Nicolas J. Beukes,...Metal Corporation Ltd.; order through Professor Bruce Cairncross, Dept. of Geology, Rand Afrikaans University...O. Box 524, Aukland Park 2006, Johannesburg, South Africa. 236 pages; 1997; U.S. $90 plus U.S. $15 surface...incredible minerals found in the world-famous Northern Cape manganese deposits, which include the great...occurrences, the historical use of these metals, and the South African context. This is followed by the history |  | | Journal (article/letter/editorial) | | (specimen and cut stones), N'Chwaning mine, Hotazel, South Africa. Martin Zinn specimen and gemstones,...photo. May/June: Pyromorphite,Daoping Lead Zinc mine, Guangxi, China. Fine Minerals International specimen...September/October: Rhodochrosite on sulfides, Sweet Home mine, Alma, Park County, Colorado, Martin Zinn specimen...Copper, Cliff mine, Keweenaw County, Michigan. A. E. Seaman Mineral Museum specimen, John A. Jaszczak photo...from Mount Malosa, Malawi, B. Cairncross, 31-37 Africa, azurite, 4043; classic and recent specimens, 44-46; |  | | Journal (issue) | | Scovil photo. In this issue also: Twin Creeks mine, USA Scott KLEINE, Bryan K. LEES & Malcolm SOUTHWOOD...Spectacular orpiment specimen from Cut 62 in Twin Creeks mine, Nevada, USA; 9.6 cm high. Azurite Corporation specimen...well-crystallised orpiment at the Twin Creeks mine in Northern Nevada, USA, and it's subsequent extraction...them the mining company that owns and operates the mine, and the other a company that spe- Marshallsussmanite...the 2011 find at the Wessels mine, Kalahari Manganese Field, South Africa. Marshall Sussman with a specimen |  | | Book | | Massachusetts WILEY-INTERSCIENCE a Division of John Wiley & Sons, Inc. New York • London • Sydney •...LIBRARY F* -?7-f 79 9u Copyright © 1972, by John Wiley & Sons, Inc. All rights reserved. Published...group names, and various ill-defined substances of local interest. The total number of minerals from the...then discredited. Zincite, described by Archibald Bruce in 1810, was the second new mineral to be found...nineteenth century, in particular Thomas Nuttall, John Torrey, and William Maclure, visited Franklin and |  | | Book | | of Canada, and of the Transvaal Supergroup of South Africa, are syntheses considerably superior t o any...University, Auckland Park, PO 524, Johannesburg 2000, South Africa. J.A. BUNTING Exploration Department, BHP...Australia. E.C. PERRY, J R . Department of Geology, Northern Illinois University, De Kalb, Illinois 60115,...DEPOSITIONAL BASIN O F THE TRANSVAAL SUPERGROUP. SOUTH AFRICA N.J. Beukes Introduction . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . . The Cape Smith-Wakeham Bay basin . . . . . . . . . . . . |
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