 | 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 |  | Maier, W. D., Rasmussen, B., Fletcher, I. R., Li, C., Barnes, S.-J., Huhma, H. (2013) The Kunene Anorthosite Complex, Namibia, and Its Satellite Intrusions: Geochemistry, Geochronology, and Economic Potential. Economic Geology, 108 (5) 953-986 doi:10.2113/econgeo.108.5.953 | Journal (article/letter/editorial) | | Geology, v. 108, pp. 953–986 The Kunene Anorthosite Complex, Namibia, and Its Satellite Intrusions: Geochemistry... 02150, Espoo, Finland Abstract The Kunene Complex of Namibia-Angola is one of the largest anorthosite...leucotroctolite intrusions. The Namibian portion of the Kunene Complex measures ~80 × 50 km, ~4,000 km2, and is...undeformed phase whose absolute age remains unknown. The Kunene leucotroctolites are among the least evolved troctolites...as −3; δ18O up to 7.5‰). In the periphery of the Kunene Complex are several, relatively small (<10 km2) |  | | Journal (article/letter/editorial) | | (AES), arsenopyrite, surface compositions, 223; pentlandite, surface alteration, 213 AUSTRALIA,Greenbushes...Conversion electron M6ssbauer spectroscopy (CEMS), pentlandite, surface alteration, 213 COOPER, M. P., see BRAITHWAITE...phosphate-sulphate minerals, 385 Decomposition of Li-sodalite, 380 Deerite, Brittany, France, 603 DE GRAVE,...burial, 415 Differential thermal analysis (DTA), Li-sodalite, 380 Diffusion studies, by ion microprobe analysis...Ferrontantalite replacing manganotantalite, South Africa and Namibia, 571 FLEISCHER, M., see ATENCIO, D., 639 Flexibility |  | | 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 |  | | Journal (article/letter/editorial) | | of primary Ni-Co-rich sulfides, including Co-pentlandite (Imai et al. 1973). Primary siegenite was recently...forming sharp grain boundaries against Co-bearing pentlandite (Kovalev et al. 2014). Siegenite has also been...Hattori 2005). Ferrocarbonatites in northwestern Namibia also host a variety of thiospinel and millerite...mineralization in ferrocarbonatite, swartbooisdrif, northwestern Namibia: Constraints from mineral compositions...the High Grade Zone at the Lac des Iles palladium mine, northern Ontario, Canada. Mineralium Deposita 40 |  | Mikhailenko, Denis, Golovin, Alexander, Korsakov, Andrey, Aulbach, Sonja, Gerdes, Axel, Ragozin, Alexey (2020) Metasomatic Evolution of Coesite-Bearing Diamondiferous Eclogite from the Udachnaya Kimberlite. Minerals, 10 (4) 383 doi:10.3390/min10040383 | Journal (article/letter/editorial) | | (secondary), K-feldspar, plagioclase, spinel, sodalite and djerfisherite. Garnet grains are zoned, with...olivine, orthopyroxene and low-pressure minerals (sodalite and djerfisherite) likely result from metasomatic...non-serpentinized kimberliteinin Udachnaya-East open-pit mine [79,80]. It is a medium-grained eclogite with a...a massive structure and a granoblastic texture mine [79,80]. It is a medium-grained eclogite with a massive...rim (Grt II) amphibole, spinel and sulfide (pentlandite and pyrrhotite). (Figure 2). MgO concentrations |  | | | | surrounded ce ne white calcite, from!iheBluebell Mine; Riondel, Digitized by the Internet Archive...chalcopyrite, covellite, pyrite, marcasite, pyrrhotite, pentlandite, stibnite, cobaltite, arsenopyrite, molybdenite...tourmaline, mica, feldspar, nepheline, zeolite, sodalite, bonded in a group around a central silicon atom...chromite, p. 80 Yellow gold (gold yellow), p. 18 pentlandite (light bronze yellow), p. 52 goethite (yellow...(blue), p. 236 chrysocolla (blue green), p. 216 sodalite (blue), p. 234 Green chlorite (pale green), |  | | 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 |  | | Journal (article/letter/editorial) | | Gabbroic rocks commonly contain pyrrhotite and pentlandite as well as various Fe-Cu-sulfides and pyrite...variety of Cusulfides as well as pyrrhotite, pentlandite, sphalerite and galena (mitcHell & krouse 1975...So-called Giant Dikes are traceable for several tens of km and are up to 800 m wide. The Giant dikes are of composite...biotite and accessory apatite, with pyrrhotite and pentlandite as primary sulfide minerals. The syenitic rocks...rocks contain feldspathoid minerals (nepheline ± sodalite) or quartz. Transitional syenogabbros (n = 2) |  | | 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 |  | Matsumoto, Megumi, Tomeoka, Kazushige, Seto, Yusuke, Miyake, Akira, Sugita, Mitsuhiro (2014) Nepheline and sodalite in the matrix of the Ningqiang carbonaceous chondrite: Implications for formation through parent-body processes. Geochimica et Cosmochimica Acta, 126. 441-454 doi:10.1016/j.gca.2013.11.016 | Journal (article/letter/editorial) | | 441–454 www.elsevier.com/locate/gca Nepheline and sodalite in the matrix of the Ningqiang carbonaceous chondrite:...be attributed to the presence of nepheline and sodalite. Rietveld refinement of X-ray diffraction data shows...crystalline phases in the matrix. Nepheline and sodalite occur mostly as discrete, equidimensional grains...minor Ca pyroxene, magnetite, troilite, and pentlandite. Despite the high abundances of Na, K, and Al...interpretation of these findings suggests that nepheline and sodalite in the Ningqiang matrix were originally formed |  | | 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 |  | | 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 |  | | Book | | Sources: @ Chile ¢ France ¢ Greece ¢ Mexico @ Namibia @ California, United States damite is a rare mineral...paradamite, which was first identified at the Ojuela Mine in Mapimi, Durango, Mexico, and confirmed as a...mineral through the alteration of nepheline or sodalite. Analcime is related to leucite, a silicate of...Massachusetts, United States ¢ Zimbabwe amed for the region of Spain where it was first discovered, andalusite...Sources: @ Australia ¢ England # Mexico Morocco ¢ Namibia Scotland Idaho, New Mexico, and Pennsylvania, United |  | Misra, Kula C., Anand, Mahesh, Taylor, Lawrence A., Sobolev, Nikolai V. (2004) Multi-stage metasomatism of diamondiferous eclogite xenoliths from the Udachnaya kimberlite pipe, Yakutia, Siberia. Contributions to Mineralogy and Petrology, 146 (6) 696-714 doi:10.1007/s00410-003-0529-z | Journal (article/letter/editorial) | | mostly <1 wt% Na2O; and zoned Mg-Fe-Al spinel), sodalite, calcite, K-feldspar, djerfisherite (K5.95Na0.02Fe18...pipe and the Udachnaya pipe located in the central region of the Siberian Platform, and have been described...minerals include K-feldspar (K-fel), calcite (Cal), sodalite (Sod), djerfisherite (Djf), magnetite (Mt), Ba-Sr...amphibole; Kelyp = kelyphite (Cpx 3 + Sp); Sod = sodalite; Sp = spinel; Chl = chlorite; K-fel = Kfeldspar;...minerals in small amounts include glass, calcite, sodalite, K-feldspar, and Ba-Sr sulfate (Fig. 3b, e), although |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...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...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO |  | Abersteiner, Adam, Kamenetsky, Vadim S., Goemann, Karsten, Golovin, Alexander V., Sharygin, Igor S., Giuliani, Andrea, Rodemann, Thomas, Spetsius, Zdislav V., Kamenetsky, Maya (2019) Djerfisherite in kimberlites and their xenoliths: implications for kimberlite melt evolution. Contributions to Mineralogy and Petrology, 174 (1) doi:10.1007/s00410-018-1540-8 | Journal (article/letter/editorial) | | pre-existing Fe–Ni–Cu sulphides (i.e. pyrrhotite, pentlandite and chalcopyrite), but can also occur as individual...Three mantle-derived xenoliths obtained from the mine dumps of the Bultfontein (Group I, or archetypal)...365–367 Ma S-bearing species), halite, sylvite, sodalite, (Kamenetsky et al. 2009b; Kinny et al. 1997)... alkali (Na, K ± S) carbonates, chlorides and sodalite are absent, and serpentine and to a lesser extent...porphyroblasts. Fe–Ni–Cu (± K–Cl) sulphide blebs (pentlandite, pyrrhotite, chalcopyrite, djerfisherite) are |  | Mikhailova, Julia A., Kalashnikov, Andrey O., Sokharev, Victor A., Pakhomovsky, Yakov A., Konopleva, Nataly G., Yakovenchuk, Victor N., Bazai, Ayya V., Goryainov, Pavel M., Ivanyuk, Gregory Yu. (2016) 3D mineralogical mapping of the Kovdor phoscorite–carbonatite complex (Russia) Mineralium Deposita, 51 (1) 131-149 doi:10.1007/s00126-015-0594-z | Journal (article/letter/editorial) | | part of the Fennoscandinavian shield; Murmansk Region, Russia). We describe major intrusive and metasomatic...Sciences, 14 Fersman Street, Apatity, Murmansk Region 184209, Russia 2 Geological Institute of the...Murmansk Region 184209, Russia 3 JSC BKovdorskiy GOK^, 5 Sukhachova Street, Kovdor, Murmansk Region 184141...phlogopitite, fenite, etc.) in the southwestern Murmansk Region is an oval caldera-like depression (7.5× 9 km)...and the fenitized host gneiss carry veinlets and dikes of nepheline and cancrinite syenite, (micro) ijolite |  | | Journal (article/letter/editorial) | | 2001 at a depth of 420 m in the UdachnayaEast pipe mine [2, 3]. This rock does not contain the minerals...have been found in this rock: halite, sylvite, sodalite Na8Al6Si6O24Cl, djerfisherite K6Na0–1(Fe,Cu,Ni)24S26Cl...carbonates are watersolu ble minerals, whereas sodalite is usually decomposed and leached under nearsurface...phlogopite, apatite, and sulfides (djerfisherite, pentlandite, pyrrhotite, and rare grains of lead sulfide)... Djerfisherite also forms intergrowths with pentlandite with a size up to 100 µm and elements of crystal |  | Yakovenchuk, V. N., Pakhomovsky, Y. A., Men'shikov, Y. P., Ivanyuk, G. Yu., Krivovichev, S. V., Burns, P. C. (2003) Chlorbartonite, K6Fe24S26(Cl,S), a new mineral species from a hydrothermal vein in the Khibina massif, Kola Peninsula, Russia: Description and crystal structure. The Canadian Mineralogist, 41 (2) 503-511 doi:10.2113/gscanmin.41.2.503 | Journal (article/letter/editorial) | | accessory mineral in a microcline – pectolite – sodalite – aegirine vein within feldspathic urtite at Mount...roundish grains up to 2 cm across included in sodalite and natrolite crystals; it is associated with...accessoire dans une veine à microcline – pectolite – sodalite – aegyrine dans une urtite feldspathique au mont...xénomorphes atteignant deux cm dans des cristaux de sodalite et de natrolite; elle est associée à djerfisherite...Chlorbartonite occurs in a microcline – pectolite – sodalite – aegirine hydrothermal vein in the heterogeneous |  | | Book | | photos of minerals— listed generally either as a region or a corresponds to the group of minerals dis-...regions, and volcanic vent deposits. Found in: region around Vesuvius Etna/Italy; Hungary; Armenia; Kazakhstan/USSR;...colemanite, calcite. 64 Found in: Tuscanny/Italy; Kaps region/USSR; California, Nevada/USA; Atacama/ Chile; Argentina;...Tyrol/Austria; Alsace, region around Paris/France; Tunisia; Morocco; Usbekistan, western Ural region/USSR, Utha,...Islands, Sicily/Italy; Japan; Indonesia; Don River region, middle Asia/USSR; Texas, Louisiana/USA; Mexico |  | | Book | | chalcopyiite, covellite, py1ite, marcasite, pytThotite, pentlandite, stibnite, cobaltite, arsenopyrite, molybdenite...tysocolla, quartz, feldspar, nepheline, zeolite, sodalite, lazurite are the examples included. Characteristics...chromite, p. 80 Yellow gold (gold yellow), p. 18 pentlandite(light bronze yellow), p. 52 goethite (yellow...(blue green), p. 216 lazurite (blue), p. 236 sodalite (blue), p. 234 malachite (green), p. 158 turquoise...n1ark t]1e Interior Plains. 4 Below the lnnuitian Region lie the Arctic Lowlands. 5 Inside the Shield lie |  | | 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 |  | | Journal (article/letter/editorial) | | from that of the same layers in other sectors. Pentlandite, nickel-iron and barrel-shaped olivine crystals...Alkali-rich phases, possibly nepheline and/or sodalite, have been deposited as thin films on the hibonite...flowed. Thus, if melt were ever present in this region, it is unlikely that it disappeared from here by...by fracture-filling veins containing nepheline, sodalite and anorthite (Fig. 2). In addition, SEM views...amounts of very fine-grained, admixed nepheline, sodalite and anorthite which could not be resolved at 4000x |
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