 | | 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...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...three years before relocating to Kakamas in Northern Cape Province. This town is situated on the Orange |  | 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 |  | | Report (issue) | | along [001], commonly bent, to 200 ¹m; rimming hennomartinite. Physical Properties: Cleavage: Parallel to... c = 5.302(4) X-ray Powder Pattern: Wessels mine, South Africa; assembled from single crystal patterns...96 7.61 3.56 n.d. [2.68] [100.00] (1) Wessels mine, South Africa; by electron microprobe, Li by ion microprobe...taikanite, hennomartinite. From the Wessels mine, near Kuruman, Cape Province, South Africa. Name: For...(1993) Hennomartinite and kornite, two new Mn3+ rich silicates from the Wessels mine, Kalahari, South Africa |  | | Journal (article/letter/editorial) | | Johannesburg, South Africa brucec@uj.ac.za SUGILITE Wessels Mine, Kalahari Manganese Field Northern Cape Province...Province, South Africa P urple is a relatively uncommon color in the mineral world, and one of the most...Kalahari manganese field in South Africa and in one mine in particular, the Wessels mine (Dixon 1985). If it...it were not for the South African deposits, sugilite would be considered a rare mineral. Sugilite, KNa(Fe2+...History in Washington, D.C. The Wessels mine sugilite in South Africa sets the benchmark for sugilite |  | | 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 |  | | Report (issue) | | Z=4 X-ray Powder Pattern: Wessels mine, Northern Cape Province, South Africa. 3.33 (100), 3.12 (55), 3...47 18.78 56.75 100.00 (1) Wessels mine, Northern Cape Province, South Africa; electron microprobe analysis...01O10. (2) SrCuSi4O10. (3) Wessels mine, Northern Cape Province, South Africa; electron microprobe analysis...sedimentary manganese deposit. Association: Hennomartinite, sugulite, pectolite, xonotlite, quartz. Distribution:...body of the Wessels mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Name: Named |  | | Report (issue) | | ² SrMn3+ 2 Si2 O7 (OH)2 H2 O Hennomartinite c 2001 ° Mineral Data Publishing, version 1.2 Crystal...13.397(2) Z=4 X-ray Powder Pattern: Wessels mine, South Africa; intensities calculated. 2.833 (100)...24.32 0.46 [8.62] Total [99.99] (1) Wessels mine, South Africa; by electron microprobe, average of 13...taikanite, kornite. In the Wessels mine, near Kuruman, Cape Province, South Africa. Name: For Henno Martin...(1993) Hennomartinite and kornite, two new Mn3+ rich silicates from the Wessels mine, Kalahari, South Africa |  | | 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)...occurrences located in the lower Mn-ore layer at Wessels mine. This norrishite-bearing specimen N2 (Fig. 1) |  | | 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) | | gillespite-group mineral from the Kalahari Manganese Field, South Africa G. GIESTER AND B. RIECK Institut fur Mineralogie...mineral species from the Wessels mine, Kalahari Manganese Field, South Africa, and it belongs to the gillespite...(2.32/30/116). Wesselsite is associated with hennomartinite, embedded in a matrix of sugilite, xonotlite...effenbergerite, new mineral, Kalahari Manganese Field, South Africa. Introduction IN the course of our study on...Roos in 1917 in honour of his colleague Hendrik Wessels (1875-1941). The mineral and the mineral name have |  | | Report (issue) | | 0:05Mg0:03 )§=2:93 Mn2: 34 Si 3:86 O14 : (2) Wessels mine, South Africa; by electron microprobe, corresponds...Russia); in a bedded manganese deposit (Wessels mine, South Africa). Association: Braunite, namansilite...pectolite, braunite, sugilite, hennomartinite, kornite (Wessels mine, South Africa). Distribution: From the...Territory, Russia. In the Wessels mine, near Kuruman, Cape Province, South Africa. Name: For the occurrence...BaSr 2 Mn3+ 2 O 2 [Si4 O 12 ]; from the Wessels mine, South Africa: a chain silicate related to synthetic |  | 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) | | potassic-mangani-leakeite from the Wessels Mine, Kalahari Manganese Field, South Africa 3 ROSA Micaela DANISI...from the holotype material (Wessels Mine, Kalahari Manganese Field, South Africa) showed that this amphibole...with sugilite, KNa2(Fe,Mn,Al)2Li3[Si12O30], hennomartinite, SrMn3þ2[Si2O7](OH)2·H2O, and serandite–pectolite...altered manganese ores of the Wessels Mine, Kalahari Manganese Field, South Africa (Fig. 1). In subsequent...material of hennomartinite and “kornite” = potassic-mangani-leakeite from the Wessels Mine, Kalahari Manganese |  | Kawachi, Y., Coombs, D. S., Miura, H. (1996) Noélbensonite, a new BaMn silicate of the lawsonite structure type, from Woods mine, New South Wales, Australia. Mineralogical Magazine, 60 (399) 369-374 doi:10.1180/minmag.1996.060.399.11 | Journal (article/letter/editorial) | | of the lawsonite structure type, from Woods mine, New South Wales, Australia Y. KAwacm, D. S. COOMBS Geology...the Woods ornamental rhodonite mine, 30 km NNE of Tamworth, New South Wales, Australia, where it occurs...lawsonite, Woods mine, Australia. Introduction THE Woods mine 30 km NNE of Tamworth, New South Wales, Australia...of which, hennomartinite, was recently described from the Wessels mine, Kalahari, South Africa (Armbruster...Serpentine Belt and New England Fold Belt of New South Wales, Mineralogical Magazine, April 1996, Vol |  | 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 |  | IBUKI, Masaru, OHI, Shugo, TSUCHIYAMA, Akira, HIRAJIMA, Takao (2010) Analysis of Mn-bearing lawsonite occurring in meta-siliceous rocks in Hakoishi serpentinite mélange of Kurosegawa Belt, Central Kyushu, Japan. Journal of Mineralogical and Petrological Sciences, 105 (6) 340-345 doi:10.2465/jmps.100615a | Journal (article/letter/editorial) | | iron into ferric compounds along with the Mn rich local chemical compositions would necessarily enhance...to a tie line among ideal lawsonite, ideal hennomartinite [SrMn23+Si2 O7(OH)2∙H2O], and noélbensonite...recognized at unit boundaries along both in the northern and southern edges of the Hakoishi mélange, but...compositions of lawsonite (Lws), quartz (Qtz), hennomartinite (Hen), ilvaite (Ilv), and braunite (Br). fraction...formula. Mn3+ bearing lawsonite group endmembers, hennomartinite and noélbensonite, contain Sr or Ba in 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...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 |  | Miyajima, H., Matsubara, S., Miyawaki, R., Ito, K. (1999) Itoigawaite, a new mineral, the Sr analogue of lawsonite, in jadeitite from
the Itoigawa-Ohmi district, central Japan. Mineralogical Magazine, 63 (6) 909-916 doi:10.1180/002646199548899 | Journal (article/letter/editorial) | | lawsonite, in jadeitite from the Itoigawa-Ohmi district, central Japan H. MIYAJIMA1, S. MATSUBARA2, R...the lawsonite group found in the ItoigawaOhmi district, central Japan. it is orthorhombic, Cmcm, a =...metamorphic belt, Itoigawa-Ohmi district, Japan. Introduction TH~ Itoigawa-Ohmi district in the most eastern part...collected from the seashore of the Itoigawa-Ohmi district, Niigata Prefecture, Japan. It was submitted to...calalogue no. FMM00662. Occurrence The Itoigawa-Ohmi district of the Renge belt is characterized by the serpentinite |  | | 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) | | 9-18, 1996 Lawsonite-typephasetransitions in hennomartinite,SrMnr[SirO?l(OH)r'HrO EucnNLrnowrrzrv,c.NDTHoNrls...CaAlr[SirO'](OH)r.HrO, were recordedat -95 and - 150 oC in hennomartinite,SrMn'[SirO'](OH)r' HrO. The room temperature...structures of lawsonite. The P2rcn structure of hennomartinite exhibits twinning parallel to (100) with additional...temperature-controlled structural evolution of hennomartinite from disorder and small twin domains in the...0 'C the Cntcm structure of Only recently, hennomartinite, SrMnr[SirO'](OH)r' lawsonitechangesto Pmcn |  | 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) | | Bag XO1, Scottsville, Pietermaritzburg 3209, South Africa THE present list is divided into two sections;... Meet., IMA, 1986. 102. Mira Flores mine, H u a n u n i district, Oruro, Bolivia. FeA16(PO4)a(OH)8.4H20...Vulcanology at Pisa in cements of Cenomanian sandstones, northern University (Italy). Bohemia, Czech Republic. LaA13(AsO4)a(OH)6...accordingly. Gen~ve, 47, 45. From the Cap Garonne mine, Arsenoflorencite-(Nd). B. Scharm, M. Scharmov~t...Barstowite. C.J. Stanley, G.C. Jones, A.D. Hart, P. northern Bohemia, Czech Republic. Keller and D. Lloyd, |  | | Journal (issue) | | Minero! News The Lost Gem Tourmaline Mine: the Royal Gorge No. 1 Mine, Eight Mile Park, Fremont Co., Colorado...I wrote in Mineral News about the gem tourmaline mine of the Colorado miner, C. A Beghtol. This long lost...surprise was a photograph of the Royal Gorge No. I Mine pegmalite and sufficienl background scenery to have...have a good probabili1y to exactly locate 1he mine (Photograph number: Sterrett I 06). Bui alas, as a...Snowbird Mine probably open On August 28th, I made a short jaunt over to the Snowbird Mine, Mineral County |  | | Journal (article/letter/editorial) | | second report following the type crystal from Woods mine, Australia (Kawachi et al. 1996). Aggregates of...apfu for O = 8), showing solid solution toward hennomartinite, a SrMn analogue of lawsonite SrMn2[Si2O7](OH)2·H2O...lawsonite (Miyajima et al. 1999), and noélbensonite-hennomartinite solid solution implies that lawsonite-type...manuscript. Constructive reviews by Gregor Markl and John C. Schumacher improved the manuscript. Our thanks...(1993) Hennomartinite and kornite, two new Mn3+ rich silicates from the Wessels Mine, Kalahari, South Africa |  | | Journal (article/letter/editorial) | | Taikanite, BaSrrMnl+O2lsi4or2l,from the Wesselsmine, South Africa: A chain silicate related to synthetic CarMnl+O2lsi4or2l...of taikanite from the Wesselsmine, Kalahari, South Africa, has been revised to BaSrrMnl*Or[Sioo,r] and...Mn3* minerals from the Wesselsmine, Kalahari, South Africa (Von Bezing et al., 1991;Dixon, 1989),we noticeda...braunite collected at the Wesselsmine, Kalahari, South Africa. These sugilite brecciasoccur in the middle...thin section (>0.025 mm), taikanite from the Wessels mine appearsnontransparent.Thus the twinning and |
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Wessels Mine, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa