 | | Journal (article/letter/editorial) | | mcgovernite-likemineral and leucophoenicitefrom the Kombat mine, Namibia Pnrr J. DUNN Department of Mineral Sciences...ABSTRACT A mcgoverniteJike mineral from the Kombat mine, Namibia, occurswith alleghanyite, calcite, and ribbeite...zO3zo(OH)2s2, Mn,Mg,Zn, and M3* : Fe3*,A1.The Kombat mine material differs from true mcgovernite in the...Analytical data for two new occurrencesof leucophoenicite,from the Kombat mine and from the Italian Alps, show...member, Mn'(SiOo)r(OH)r. InrnonucrroN The Kombat mine in Namibia has recently produced a number of assemblagesof |  | Criddle, A. J., Keller, P., Stanley, C. J., Innes, J. (1990) Damaraite, a new lead oxychloride mineral from the Kombat mine, Namibia (South West Africa) Mineralogical Magazine, 54 (377) 593-598 doi:10.1180/minmag.1990.054.377.10 | Journal (article/letter/editorial) | | a new lead oxychloride mineral from the Kombat mine, Namibia (South West Africa) A. J. CRIDDLE, 1 P....specimens from the Asis West section of the Kombat mine, Namibia (South West Africa). Damaraite is colourless...hosts the Kombat deposit. KEYWO RDS: damaraite, new mineral, lead oxychloride, Kombat mine, Namibia. Introduction...the Kombat Mine. The mine is sited on the northern flank of the Otavi Valley, 37 km east of Otavi and...south of Tsumeb, in northern South West Africa/Namibia (lat. 19~ long. 17~ and is a medium-rank producer |  | Hawthorne, Frank C., Abdu, Yassir A., Ball, Neil A., Pinch, William W. (2013) Carlfrancisite: Mn2+3(Mn2+,Mg,Fe3+,Al)42(As3+O3)2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42, a new arseno-silicate mineral from the Kombat mine, Otavi Valley, Namibia. American Mineralogist, 98 (10) 1693-1696 doi:10.2138/am.2013.4426 | Journal (article/letter/editorial) | | arseno-silicate mineral from the Kombat mine, Otavi Valley, Namibia Frank C. Hawthorne1,*, Yassir A...Si)O4]2(OH)42, is a new mineral from the Kombat mine, Otavi Valley, Namibia, and occurs as curved platy aggregates...mineral species, arseno-silicate, Tsumeb mine, Otavi Valley, Namibia, electron microprobe analysis, optical...Introduction Occurrence The mineralization at the Kombat mine, Namibia, consists of epigenetic, hydrothermal, and...Asis West sector of the Kombat mine (Dunn et al. 1988), Otavi Valley, Namibia, latitude 19°45′ S, longitude |  | Peacor, Donald R., Dunn, Pete J., Su, Shu-Chun, Innes, John (1987) Ribbeite, a polymorph of alleghanyite and member of the leucophoenicite group from the Kombat mine, Namibia. American Mineralogist, 72 (1-2) 213-216 | Journal (article/letter/editorial) | | member of the leucophoenicitegroup from the Kombat mine, Namibia DoN.q,Lo R. Pucon Department of Geological...(OH)r(SiOo)r, is a new mineral from the Kombat mine in Namibia. It is orthorhombic with spacegroupPbnm...X: Y. It is inferred to be a member of the leucophoenicite group having octahedron sequence(1,22)2and...generalappearanceof dered During the course of mining at the Kombat mine in those of the Mn-humites and other members...grouping of intense reflectionswith d values and leucophoenicite groups. Detailed investigation has near 2.8 |  | | Report (issue) | | Mn2+ 7 (SiO4 )3 (OH)2 Leucophoenicite ° c 2001 Mineral Data Publishing, ver sion 1.2 Crystal Data:...0:03K 0:01 )§=6:99 (Si1:01 O4 ) 3(OH)2 : (2) Kombat mine, Namibia; by electron microprobe, H2 O by di®erence;...)§=6:98 (SiO4 )3 (OH)2:10 : Mineral Group: Leucophoenicite group. Occurrence: A late-stage hydrothermal...vesuvianite, barite, copper, hausmannite (Kombat mine, Namibia). Distribution: At Franklin, Sussex Co.... Val d'Aosta, Italy. In the Kombat mine, 49 km south of Tsumeb, Namibia. From Hotazel, near Kuruman, |  | Peacor, Donald R., Essene, Eric J., Rouse, Roland C., Dunn, Pete J., Nelen, Joseph A., Grice, Joel D., Innes, John, Knorring, Oleg Von (1988) Holdawayite, a new manganese hydroxyl-carbonate from the Kombat mine, Namibia. American Mineralogist, 73 (5-6) 632-636 | Journal (article/letter/editorial) | | new manganesehydroxyl-carbonatefrom the Kombat mine' Namibia DoN.lLo R. Pnacon, Entc J. EssnNe, Ror....Holdawayite is a new mineral occurring at the Kombat mine, Namibia. The chemical analysisis MgO 4.4, MnO 64...rocks with assemblagesincluding humite- and/or leucophoenicite-groupminerals. Idealized Cl-free holdawayite...abundant pink carbonatewas found in the Kombat mine in Namibia in 1982 but could not be identified as...the Kombat mine, 37 km east of Otavi and 49 km south of Tsumeb, Namibia. The geologyof the mine was describedby |  | | Report (issue) | | 742(6) c = 15.70(1) X-ray Powder Pattern: Kombat mine, Namibia. 1.796 (100), 2.873 (80), 2.552 (80), 2...0 [4.9] Total [100.0] Chemistry: (1) Kombat mine, Namibia; by electron microprobe, H2 O by di®erence;...Mineral Group: Dimorphous with alleghanyite. Leucophoenicite group. Occurrence: In mineralogically distinct...galaxite, jacobsite. In the Kombat mine, 49 km south of Tsumeb, Namibia. To honor Dr. Paul H. Ribbe...alleghanyite and member of the leucophoenicite group from the Kombat mine, Namibia. Amer. Mineral., 72, 213{216 |  | | Report (issue) | | Wet Shaft, Tsumeb mine (photograph by Dr Gabi Schneider, Geological Survey of Namibia) MINISTRY OF MINES...GEOLOGICAL SURVEY OF NAMIBIA Director: B.G. Ho al BULLETIN 1 Type mineralogy of Namibia by Vaughan C. Daltry...the Geological Survey P.O. Box 2168, Windhoek, Namibia Price Local (+GST) Abroad (Post Free) R20.00 R25... ______ ........ Abstract The type mineralogy of Namibia is reviewed. One hundred and thirty-nine (139)...Twenty-three (23) unnamed phases are also listed. Namibia ranks second to Zaire as the most productive African |  | Dunn, Pete J., Francis, Carl A., Ramik, Robert A., Nelen, Joseph A., Innes, John (1989) Wiserite, an occurrence at the Kombat mine in Namibia, and new data. American Mineralogist, 74 (11-12) 1374-1376 | Journal (article/letter/editorial) | | 137+1376, 1989 Wiserite, an occurrenceat the Kombat mine in Namibia, and new data Pnrn J. DUNN Department of...rare manganeseborate, has been found at the Kombat mine, Namibia, associatedwith hausmannite,alleghanyite...not chemically analyzed;one specimen,from the Yaei mine, Tsuchiyama, Shiga, Japan, was obtained through...excellent crystals of wiserite from the Kombat mine in Namibia, where it occurs with hausmannite and alleghanyitein...wiserite described is from the Kombat mine, 49 km south of Tsumeb,Namibia (Innesand Chaplin, 1986). The |  | | Journal (article/letter/editorial) | | edge-sharingsilicate tetrahedra in the group leucophoenicite Rosnnr L. Fnnpo Department of Geology, Trinity...intergrowths of twin bands scribed from the Kombat mine in Namibia by Peacoret that are two and three atoms...shipsbetweenleucophoenicitesandhumites. The structures of leucophoenicite (Moore, 1970) and humites in terms of anion-stuffed...Summaryof structuredata for the humiteand leucophoenicite groups Mineral ldealformula Norbergite MANt...Tephroite Mg,(SiO4) Mn,(Si04) Unknown Ribbeite Leucophoenicite Jerrygibbsite Mn3(SiO4XOH), Mn5(SiO4),(OH) |  | | Book | | North TsumebSpecial The Otavi Mountainland The Central Northern to Northwest Region including Damaraland...s Onganja Mine and Surrounding Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits...__ Republic of Namibia The President State House W°Ntdhoek FOREWORD Namibia is endowed with an...from near and far. Fine mineral specimen from Namibia are displayed in all the famous natural science |  | | Journal (article/letter/editorial) | | 113(6) Å, V 12013.5(4) Å3, from the Kombat mine, Otavi Valley, Namibia, and mcgovernite, ideally Zn3 (Mn2+...mcgovernite-like mineral from the Kombat mine, Otavi Valley, Namibia, and Hawthorne et al. (2013) recently...Al)(As3+O3)2[(Si,As5+)O4]10(OH)16, from the Sterling Hill mine, Ogdensburg, Sussex County, New Jersey, USA. Mineralogical...mcgovernite-like mineral and leucophoenicite from the Kombat mine, Namibia. American Mineralogist, 73,...arseno-silicate mineral from the Kombat mine, Otavi valley, Namibia. American Mineralogist, 98, 1693–1696 |  | | Journal (issue) | | by R. Z. Kothavala Rare minerals of the Kombat mine, Namibia ................................ 421 by....439 by S. Petrussenko Minerals of the Beltana mine, Puttapa, South A ustralia 449 by P. Elliot Columns...ichigan 49930 (906) 482-9560 Michigan native copper; mine owner; wholesale, retail 411 Museum o f Geological...stilbite on the specimens were typical of that region. Bill Birch (1977) similarly encountered cavansite...striking a deal with the quarry owner for the rights to mine specimens. Sparse sprays of cavansite encountered |  | | Report (issue) | | hardystonite, tephroite, clinohedrite, esperite, leucophoenicite, hodgkinsonite, diopside, cuspidine, calcite...In the Wessels mine, near Kuruman, Cape Province, South Africa. From the Kombat mine, 49 km south of...of Tsumeb, Namibia. Name: From the Greek for blue green and color, in allusion to its color. Type Material: |  | | Report (issue) | | mcgovernite-like mineral and leucophoenicite from the Kombat mine, Namibia. Amer. Mineral., 73, 1182{1185 |  | | Journal (article/letter/editorial) | | Africa brucec@uj.ac.za Hausmannite N’Chwaning II Mine, Kalahari Manganese Field Northern Cape Province...specimen of hausmannite on andradite, N’Chwaning II mine, Kalahari manganese field, South Africa. Steve Smale...some fine hausmannite was made at N’Chwaning II mine. The crystals are typically pseudo-octahedral pagoda...N’Chwaning II mine. The habit is the now-familiar pagoda shape typical of the material from this region. But the...of 2 cm are common, and in 1996 the N’Chwaning II mine produced large crystals to 7.5 cm on edge. The Kalahari |  | | Journal (article/letter/editorial) | | Comparisons are madewith other mineral depositssuchas Kombat(Namibia)and Franklin Furnace(New Jersey)which alsomay...Cu-Pbdepositof Kombat,Namibia (Innes and Chaplin, 1986). The mineralizationat Kombat is of particular... R. C., 1986, Ore bodiesof the Kombat mine, South West Africa/Namibia, in Anhaeusser,C. R., and Maske...SouthAfrica:Implia polymorphofalleganyiteanda memberof the leucophoenicite cationsfor oxygenin the Precambrianatmosphere:... v. 19, p. 1- 1988, Defernite from the Kombat mine, Namibia: A second occurrence, structure refinement |  | | Journal (article/letter/editorial) | | Volume 87, pages 154–159, 2002 H positions in leucophoenicite, Mn7Si3O12(OH)2: A close relative of the hydrous... U.S.A. ABSTRACT The proton positions in leucophoenicite, ideally Mn7Si3O12(OH)2, have been determined...99(1) and 2.09(1) Å. The H····H distance in leucophoenicite is 2.16(1) Å, which is more than twice the...expected in leucophoenicite. A comparison of the H environments is made between leucophoenicite and Phase...gained by looking at suitable analogue phases. Leucophoenicite, ideally Mn7Si3O12(OH)2, a low-pressure mineral |  | | Journal (article/letter/editorial) | | leucophoeniclte rncgovernite-1i.ke 1182 from the Kombat mine, Namibia, 632' 838' 888 Dunn, P.J., see Peacor, D...pyroxene-beari.ng quartz syenite gnei.ss from the High Peaks region of the Adirondack Mountains, 26I Paces, J.8., see...new manganese hydroxyl-carbonate from the Kombat mine, Namibia, 632 Peacor, D.R,, R.C. Rouse, S.W. Bailey:...J.A. Nelen: Defernite from the Kornbat rnine. Namibia: A second occurrence. structure refinement, and...lead oxychloride silicon-bearlng (Namlbia), Kombat mine, South West Africa 643 I44O Rouse, R.C., see |  | Brugger, Joël, Armbruster, Thomas, Meisser, Nicolas, Hejny, Clivia, Grobety, Bernard (2001) Description and crystal structure of turtmannite, a new mineral with a 68 Å period related to mcgovernite. American Mineralogist, 86 (11) 1494-1505 doi:10.2138/am-2001-11-1218 | Journal (article/letter/editorial) | | “mcgovernite-like” Mn-Mg arsenate from the Kombat Mine, Namibia. The crystal structure of turtmannite is...mcgovernite-like mineral described from the Kombat mine by Dunn et al. (1988) plots along the same chemical...Sample Pigl.2 1.5 Mcgovernite-like mineral, Kombat Mine 2.5 Dunn et al. (1988) 1.0 0.0 0.5 1.0 1...DESCRIPTION AND CRYSTAL STRUCTURE OF TURTMANNITE the zinc mine at Sterling Hill, New Jersey. Chemical analyses...mcgovernite-like mineral (Dunn et al. 1988) from the Kombat mine, Namibia, also with comparable lattice constants |  | | Journal (article/letter/editorial) | | image, 10 kV. (b) Detailed view of the central region of spessartine crystal in (a). Pigl.6, BSE, 10...an unnamed phase from the Mn ores at the Kombat mine, Namibia (Dunn et al. 1988). Turtmannite is relatively...from the lower greenschist facies (e.g., Kombat mine, Namibia; Innes & Chaplin 1986) to the granulite...tephroite-bearing rocks from the Hoskins manganese mine, New South Wales, Australia. Neues Jahrb. Mineral...mcgovernitelike mineral and leucophoenicite from the Kombat mine, Namibia. Am. Mineral. 73, 1182-1185 |  | | Book | | REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY THE MINERAL RESOURCES OF NAMIBIA FIRST...ENERGY Of the several hundred minerals present in Namibia, around sixty have been exploited. some, such as...base metals and industrial minerals have helped Namibia rank amongst the top five mining countries in Africa...terms of production and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries |  | | Journal (issue) | | Minerals of the Kaokoveld District, Kunene Region, Namibia .............................................1 cm, from the Kaokoveld District, Kunene Region, Namibia. Irv Brown specimen; Jeff Scovil photo. See...the best vesuvianite specimens from the Jeffrey mine in Quebec. In this issue we present a review of...Herodsfoot Mine Work Readers who enjoyed Roy Starkey's superb article on the famous Herodsfoot mine in Cornwall...to the old engine house at the North Herodsfoot mine is being cleared of hundreds of tons of accumulated |  | | Journal (article/letter/editorial) | | 1984. Schweiz. Min. Pet. Mitt. 64, 11. At the Clara mine, nr. Oberwolfach, central Black Forest, W. Germany...Hero Town (420 m, 44 ~ west of south), QalaDizeh region, NE Iraq, in melilite skarn in contact with banded...M. 50, 681. At the dumps of the disused Bambolla mine, Moctezuma, Sonora, Mexico, as monomineralic crusts...museum specimens of Te-bearing ore from the Good Hope mine, Vulcan, Colorado, USA, as grey metallic, opaque...1986. Zap. 115, 355. [XpoM~epna.] In the Kumak region, southern Urals, USSR, in goldquartz veins cutting |  | Li, Rong, Lin, Jinru, Nilges, Mark J., Chen, Ning, Pan, Yuanming (2014) Arsenic speciation in danburite (CaB2Si2O8): a synchrotron XAS and single-crystal EPR study. European Journal of Mineralogy, 26 (1) 113-125 doi:10.1127/0935-1221/2014/0026-2358 | Journal (article/letter/editorial) | | have any physical meaning beyond the first-shell R region. Therefore, fitting of the EXAFS spectrum also...fittings above, modeling has been made over the R region from 1.0 to 2.3 Å to include partial occupancy...natural sink for arsenic in zinc deposits and related mine tailings: Evidence from single-crystal EPR spectroscopy...mcgovernite-like mineral and leucophoenicite from the Kombat mine, Namibia. Am. Mineral., 73, 1182–1185...G.A. (1998): Quantitative arsenic speciation in mine tailings using X-ray absorption spectroscopy. Am |
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