 | von Seckendorff, V., Drüppel, K., Okrusch, M., Cook, N. J., Littmann, S. (2000) Oxide-sulphide relationships in sodalite-bearing metasomatites of the Epembe-Swartbooisdrif Alkaline Province, north-west Namibia. Mineralium Deposita, 35 (5) 430-450 doi:10.1007/s001260050254 | Journal (article/letter/editorial) | | Oxide±sulphide relationships in sodalite-bearing metasomatites of the Epembe±Swartbooisdrif Alkaline Province, north-west...north-west Namibia Received: 22 October 1998 / Accepted: 27 October 1999 Abstract The south-eastern...south-eastern part of Kunene Intrusive Complex (KIC), Namibia/Angola, is host to volumetrically signi®cant, and economically... concentrations of sodalite in the area around Swartbooisdrif, north-west Namibia. The mineralisation...metasomatic exchange with carbonatites of the Epembe± Swartbooisdrif Alkaline Province. This process led to the |  | | Journal (article/letter/editorial) | | MINERALIZATION IN FERROCARBONATITE, SWARTBOOISDRIF, NORTHWESTERN NAMIBIA: CONSTRAINTS FROM MINERAL COMPOSITIONS...dykes of Swartbooisdrif, northwestern Namibia, transect the anorthositic rocks of the Kunene Intrusive...fenitized wallrock anorthosite (albite, biotite and sodalite), with Fe–Cu–Ni sulfides (assemblage: pyrite,...metasomatic formation of nearly pure, SO4-free sodalite. A subsequent increase in f(O2) led to a systematic...equilibria, fluid evolution, Swartbooisdrif, Kunene Intrusive Complex, Namibia. Sommaire Les filons de ferrocarbonatite |  | | Book | | Mountainland The Central Northern to Northwest Region including Damaraland The Central Namib Desertand...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 |  | | 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unpublished.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 |  | | Report (issue) | | the following page) from the open-pit magnesite mine at Podrečany, Czechoslovakia (now just Slovakia)...specimens is the sharp dodecahedral crystal of sodalite in white marble matrix (also on the following...Slovakia. Arkenstone specimen; Joe Budd photo. Sodalite, 5 cm, from Sar-e-Sang, Badakhshan Province, Afghanistan...Dioptase with bayldonite, 2.5 cm, from Tsumeb, Namibia. Arkenstone specimen; Joe Budd photo. More to...an August 2013 find of siderite in the Milpillas mine, Sonora, Mexico. If siderite specimens from Milpillas |  | | Report (issue) | | the locality Rob gives only “Erongo Mountains, Namibia” but on the Marin Minerals website (cited above)...======================================== Region, Namibia.” This sounds familiar, for jeremejevite crystals...Mountains, Namibia. The Arkenstone specimen; Joe Budd photo. Calcite, 5.5 cm, from the Conco mine, North...lustrous, limpid gray-green calcite from the Conco mine, North Aurora, Kane County, Illinois, which are...a big pocket system in the underground limestone mine 20 miles west of downtown Chicago. The forms of |  | | Journal (issue) | | g ic a l R eco rd Articles Elongated twins of sodalite and other isometric m inerals...................Peter Richards & D. G. Howard The Pezinok antimony mine, Male Karpaty Mountains, Slovakia.................Howard 356 S.E. 44th Avenue Portland, Oregon 97215 Sodalite fa m ily minerals frequently fo rm pseudo-hexagonal...by rotation about a threefo ld axis. Figure 1. Sodalite, twinned dodecahedron; Fig ure 432 taken from...System or Textbook have seen the drawing of a sodalite twin reproduced here (Fig. 1). The projection |  | | Catalog/List | | about 5111111 and some with bro ken tops. Tsumeb Namibia £25 (see left) B) Ix2 £ 15 2. ROSASITE thick blue...of micro xls and masses on 2x 1 matrix (Tsumeb Namibia)£9 3. PHOSGENITE single colourless crystal section...inch area of curious flattened c1ystals Nanisivik ,Mine, Baffin island , North West Territories Canada £25...seem a bit dull from this location £15 (Tsumeb Namibia) 6. RUTILE brownish reticulated c1ystals laying...Quartz, one x half inch area. Rooisand Gamsberg Namibia£ I 0 7. CASSITERITE pure brown masses, unusual |  | | Book (edition) | | A splendid specimen of wulfenite from Tsumeb, Namibia Half-title: Quartz, Nababeep Opposite: Mimetite...world famous Tsumeb mine Overleaf: Crystalline incrustations of vanadinite, Namibia Contents Acknowledgements...attached list of working mines. The geological map of Namibia which shows the mines and also farm boundaries...Goodhousc on the Orange River cast of Vioolsdrif. In Namibia amethyst can be found north-east of Otjiwarongo...station in the Northern Transvaal, and ; Rossing in Namibia. Asteriated material with well-defined stars hat |  | | | | surrounded ce ne white calcite, from!iheBluebell Mine; Riondel, Digitized by the Internet Archive...Minerals with sulphur or arsenic and a metal ion. Chalcocite, bornite, chalcopyrite, covellite, pyrite, marcasite...tourmaline, mica, feldspar, nepheline, zeolite, sodalite, bonded in a group around a central silicon atom...tint), p. 82 pyrrhotite (bronze yellow), p. 50 chalcocite (dark grey), p. 34 | graphite (steel grey, black)...(lead grey with platinum (silver-white), p. 26 chalcocite (dark grey), p. 34 Hard (Mohs more than 514) | | | Catalog/List | | OH Ix! £3 lx2 £6 2x2 £10 34 ■ANDRADITE Benallt Mine, Lleyn Wales Pale beige fine grained mass with reddish...serpentine. Ix! £5 lx2 £10 38 BANALSITE Benallt Mine, Lleyn Wales Rich brown mass with approx 5 % Cymrite...£15 2x2 £30 Ba Na Al SiO 22 BANNISTERITE Benallt Mine. Lleyn, Wales Dark brown veinlets throughtout calcite/...fairly sparse. Ix½ £7 CuSe 73 ■BRAUNITE Praboma Mine, St Marcel ,Piedmont, Italy Dark grey massive with...FLUORESCENCE Long wave Jxl £4 442 ■■CARYOPILITE Bemallt Mine, Lleyn Wales thin felty brown vens in Calcite Mn |  | | Book | | Republic, 6 cm). Figure 1.2 Halite crystals (Namibia, 5.8 cm). 6 section devoted to the display of...(field of view 8 cm). Figure 1.3 An opencast iron ore mine (Postmasburg, South Africa). 7 microscopes, or...in groups 8–12, show marked deviation. In this region of the Periodic Table, electronegativity increases...bonded substances, the electrons are confined to the region between the nuclei of the bonded atoms and they...showing stepped, cubic crystal faces (Erongo, Namibia, 5.8 cm). hence occurs less commonly. Figure 4 |  | | Report (issue) | | plwto Plldi.wp11�. Yaalte: 12.5 cm wide Siglo XX Mine, ,U� Bustillo province, Potosi Malty Zinn colkdknt...in Oruro ... 26 BY ROBERT B. COOK The Morococala Mine ..................................................Sapo Sodalite Deposit: A Pre-Columbian Gem Mine ........... 80 BY ALFREDO PETROV The Anahi Mine .......(Chacaltaya, about 5,100 meters), the highest metallic ore mine (Chorolque, up to 5,450 meters), and so on. But...deposits, including the unique Anahi "ametrine" Mine (page 85); Cerro Manomo, the world's largest carbonatite |  | | Catalog/List | | matrix hl !3 5 AGARDITE (Ce) r ...fe green micro's Mine, Wolf;_n, West Germany) 'h ins f.3. 60 6 ALBITE...A~FVEDSONITE rich dark grey fine grained øass with Sodalite. (llimaussaq Greenland) lx1 t2.50 lx2 t5.00 38...yellow pea size masses &crusts on Quartz (les Anglais Mine, Massiac,Brouse France) lxl 60p 1x2 fl.10 56 BIOTITE...61 BORNITE rich purple mass in matrix.(Gortdrum Mine, Tipperary S.Ireland) location closed. lxl 50p 1x2...BOULANGERITE grey masses in and on matrix.(Melba Mine, N.E.Dundas Tasmania) lxl !1.90 1x2 !4.00 64 BOULANGERITE |  | | Journal (issue) | | crystal, 10.5 cm, with quartz, from the Yaogangxian mine, Hunan, China. Private collection; Jeff Scovil photo...well before the moisture and dust of an operating mine had had time to exert their destructive influences...the Karnasurt mine. On the following day, Nickolay Pavlov, chief geologist of the mine, and geologist...lilac ussingite, lemon-yellow vuonnemite, crimson sodalite, orange eudialyte, salmon-pink serandite, dark-brown...tite. In some areas, the foyaite is enriched by sodalite and villiaumite lenses up to 20 cm thick; these |  | | Catalog/List | | ARSENIOSIDERITE orange brown crusts on Hidalgoite (Gold Hill Mine Tooele County Utah USA) lxl f2.5O lx2 f5.OO 2x2...purple-brown crystalline masses (Colebrook Hill Mine,Roseberry, Tasmania) lxl fl.5O lx2 f3 2x2 f6.OO...BOKITE black to dark brown masses (Monumnt No 2 Mine Apache County 1/2 x 1/2 f3.5O lxl f5 C266 DEFERNITE...A) lx2 f8 (BORON) pink cleavage in of otavi, Namibia) lem grey HAUSMANNITE (Kombat f3.5O C267 BUSTAMITE...C269 CHABAZITE good covering location. (Ramsley Mine lxl fl.5O lx2 f3 of glassy micros Devon) 2x2 f6 |  | | Book | | already been made. LEFT KennecoU opencast copper mine in Utah, USA. Copper is widely used in the electrical... flower blue with no obvious inclusions. that region. change colour when heated. Range: Chrysoberyls...desirable crystals traditionally come from the Kashmir region of India but Australia is TOP It I II T A sample...chrome. Crystals can be transparent or opaque region of Burma, one of the yellow crystals are the most...gem-quality Afghanistan, Burma, Japan, Mexico, Namibia, Nigeria, the USSR, the United States, Zambia and |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...g gold). ductile (e.g. copper). sectile (e.g. chalcocite). elastic Optical co11sta11ts ill reflected light...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing |  | | Journal (article/letter/editorial) | | Anorthominasragrite V4+O(SO4•5H2O T RICLINIC Locality: North Mesa mine group (west ½, southwest ¼ of section 35, Township...pegmatite. Associated minerals are: nepheline, sodalite, K-feldspar, natrolite, pectolite, aegirine, shcherbakovite...Locality: The Berisal Complex, Wasenhorn, Simplon Region, Switzerland. Occurrence: In schists associated...Name: After the Gantertal, a famous valley in the region in which the mineral was found. Comments: IMA No...of muscovite from the Berisal Complex, Simplon Region, Switzerland. Canadian Mineralogist 41, 1271-1280 |  | | Catalog/List | | crystalline masswith Fluorescent (LW)areas of Sodalite (3t Hilaire, Quebec, Canada) .. lxl Elins lx2...Arnphibolegroup rich blackish fine grained mass with Sodalite. (Ilimaussaq, Greenland) lxl f2.50 lx2 f5.00 037...bright orange red micro crystals in slag. (Cetine mine, Sienna Italy) 061 BRITHOLIT8 Ce. Ce ca Si0/4 P0/4...1 x ½ fl.10 119 CHALCOSTIEI'l'ECu Sb S 091 CHALCOCITE Cu Sulphicte rich grey metallic in matrix {various...pure greenish Scorodite (Fe Arsenate) (Gold Hill Mine,TooeleCountyUtah) ½" size El.SO lxl f4 lx2 ED 231 |  | | Catalog/List | | ----·-·- ---- ·- -- 1129 ALMANDINE Brastad iron Mine near Arendal ,Norway 87 ■BERYL Evje area . South...---·-··----·------ ·- - ---27 ANTHOPHYLLITE Kaveltorp Mine Sweden 1008 CHRYSOBERYL Kolsva. Vastmanland Sweden...--~----· ·---·-------- -- -62 COBAL TITE Bolidcn Mine, North Sweden 1003 ARSENIOPLEITE Sjogruvan,Ridd...2x3 £25 Ampibole 1140 ERYTHRITE Sl-a1tterud Cobalt Mine. Vikersund Norway 970 MAGNESIOHASTINGSITE Langban...________ __ _!LU9! .~~~ -E N1 163 GALENA Smallcleugh Mine, Nenthcad. Cumbria Cube-octahedral grey crystals |  | | Report (issue) | | but is not labelled. - BANCROFT TRlP 1 - This mine is closed and most of the Photo 27, p. 59 buildings...now Highway 28. - From Stop 11, Craigmont Corundum Mine, to Combermere, take Highway 517; the road as illustrated...Geology -Ontario -Peterborough Region. 2. Geology - Ontario - Bancroft Region. I. Ontario. Ministry of Northern...This guidebook is the third of the series. The region covered in this guidebook lies roughly 100 miles...and Beryl Nepheline Syenite Fluorspar Marble and Sodalite Mica Uranium Bancroft Trip 1 Bancroft Trip 2 Bancroft |  | | Journal (issue) | | tours for collectors are permitted by the friendly mine management, and visitors have even been allowed...the area and purchased the rights to the Verchniy mine. Operations to extract copper, lead and zinc began...Dal’negorsk. GEOLOGY The geology of the Dal’negorsk region is tectonically complex because of its relationship...unique among the various intrusive rocks of the region. Xenoliths of eclogite and lherzolite suggest a...followed by the intrusion of andesite and diabase dikes. This andesite filled some of the pockets which |  | | Journal (article/letter/editorial) | | and lead. Supergene alteration of digenite and chalcocite at Kvanefjeld has resulted in the formation of...ooo.. ooooo. oo. oooooooooooooo. oooo.• oo• o Chalcocite and digenite ... o. oo. o.. o. ooooooooo. ooo... o. oo. oo Mode of formation of digenite and chalcocite oooooo..• o•• o.. ooooo. oooooooo.. oooo. o............... Alteration of rohaite Discussion Chalcocite, digenite and associated secondary minerals from... . . . .. Digenite and associated secondary 'chalcocite . . . . . . . . . . . . . . . . . . . . . . |  | | Catalog/List | | Mount Stc Hilaire, Quebec with Fluorescent orange Sodalite .Canada Very’ rich mass of black crystals, some...Greenish , sparse, acicular micros in Penbenhy Croft Mine, St cavities in quartz_________________ Hilary Cornwall... Rich white crusts on matrix. ALAMOSITE Rawhide Mine, Mohave Ixl £9 'A x A £3 1 xA Pb SiO/3_____________...Feldspar_____________ Black areas in actinolite Basinas Mine Sweden 1x1 £1.20 ALLANITE 9 Ce Y Fe SiO__________...grey masses with possible Alstonite Fallowfield mine, ALSTONITE 13 Hexham.Northumberland micros.____ |
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