 | 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 |  | | Journal (article/letter/editorial) | | Mesoproterozoic upper amphibolite facies metamorphism in NW Namibia: a multi-isotopic approach Barbara Setha,b,*,1...of the upper amphibolite facies Orue Unit in NW Namibia. Metasedimentary and meta-igneous rocks of the...leaching technique on garnet and rutile, U–Pb multi-grain analysis on rutile, Sm–Nd–Lu–Hf leaching technique...anorthositic Kunene Intrusive Complex (KIC) have previously been ascribed to the Palaeoproterozoic Epupa Complex...took place 30–50 Ma after emplacement of the KIC. Rutile growth ages of 1248 Ma in one sample reflect fluid |  | Thompson, R., Smith, P., Gibson, S., Mattey, D., Dickin, A. (2002) Ankerite carbonatite from Swartbooisdrif, Namibia: the first evidence for magmatic ferrocarbonatite. Contributions to Mineralogy and Petrology, 143 (3) 377-396 doi:10.1007/s00410-002-0350-0 | Journal (article/letter/editorial) | | A.P. Dickin Ankerite carbonatite from Swartbooisdrif, Namibia: the first evidence for magmatic ferrocarbonatite...Archaean-Proterozoic basement at Swartbooisdrif, adjacent to the NW Namibia-Angola border. Their age is uncertain...100 Ma and their associated fenites are rich in sodalite. Where unaffected by subsequent recrystallisation...modal amounts from mass-balance considerations. Sodalite from the fenite is REE poor. Geothermometry, using...carbonate from a silicate melt. The sodalite-dominated Swartbooisdrif fenites suggest that the parental |  | Villanova-de-Benavent, Cristina, Torró, Lisard, Castillo-Oliver, Montgarri, Campeny, Marc, Melgarejo, Joan Carles, Llovet, Xavier, Galí, Salvador, Gonçalves, Antonio Olimpio (2017) Fe–Ti(–V) Oxide Deposits of the Kunene Anorthosite Complex (SW Angola): Mineralogy and Thermo-Oxybarometry. Minerals, 7 (12). 246pp. doi:10.3390/min7120246 | Journal (article/letter/editorial) | | minerals Article Fe–Ti(–V) Oxide Deposits of the Kunene Anorthosite Complex (SW Angola): Mineralogy and...December 2017 Abstract: The Kunene Intrusive Complex (KIC), in NW Namibia and SW Angola, is one of the...(REE) [4,7]. The Kunene Intrusive Complex (KIC), located in SW Angola and NW Namibia, is one of the largest...overprint [29]. The basement in the southern KIC is the Epupa Complex, which consists of two distinct metamorphic...granulite facies metasediments exposed along the Kunene river were intruded by metagranites and granites |  | | 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 |  | | Journal (article/letter/editorial) | | sills, dikes, plugs, lava flows, and pyroclastic blankets. Incorporating cone sheets, ring dikes, radial...radial dikes, and fenitisation-type halos into an exploration model and recognising associated alkaline silicate... Tanzania, and one occurrence in Zambia); (b) Namibia and Angola; (c) Eastern Russia (East Tuva, Enisei...fenitisationtype metasomatism are carbonates, apatite, barite, rutile, magnetite, titanite, pyrochlore, monazite-(Ce)...recognised, such as the Swartbooisdrift complex, Namibia (Drüppel et al. 2005) and the Gifford Creek ferrocarbonatite |  | Giovannini, Arthur L., Mitchell, Roger H., Bastos Neto, Artur C., Moura, Candido A.V., Pereira, Vitor P., Porto, Claudio G. (2020) Mineralogy and geochemistry of the Morro dos Seis Lagos siderite carbonatite, Amazonas, Brazil. Lithos, 360. 105433 doi:10.1016/j.lithos.2020.105433 | Journal (article/letter/editorial) | | the only example of a Nb deposit in which Nb-rich rutile is the main Nb ore mineral. Apart from the laterites...example where Nb-rich rutile (with minor Nb-rich brookite formed from Nbrich rutile) is the main Nb ore...Kugwe (Kenya) (Onuonga et al., 1997), Swartbooisdrif (Namibia) complex (Thompson et al., 2002); Sallanlatvi...of C and O stable isotope data, is that from Swartbooisdrif (Thompson et al., 2002). Other ferrocarbonatites...lateritic profile. The main Nb ore mineral is Nb-rich rutile (with 10.5–26.86 wt% Nb2O5), which occurs in all |  | | Journal (article/letter/editorial) | | collection of the min erals to be found from this region. Often the results have been discour aging, but...few years have revealed good specimens of 496 rutile, pyrite cubes, feldspar, and other allied minerals...mineral with pyrite, marcasite, feldspar, and some rutile are found here. The accompanying sketch (Fig. 1)...Sedimentary Rocks 1. 2. 3. 4. Calcite Hill Titanium Mine Molybdenite Prospect Brookite Prospect MAGNET ...Cove Creek bridge and on The Branch where syenite dikes cut across the stream bed. ALBITE:—Appears to be |  | | Journal (article/letter/editorial) | | produce carbonate-albite-muscovite-hematite-Nb-rutile and cancrinite-aegirine-carbonate fenites. The...aillikite), through ED dominant camptonite, to sodalite tinguaite, trachyte and carbonatite. These evolved...1993). Accessory minerals typically include Nb-rutile and carbonate minerals. 2. Geology In the Haast...ancylite-calcite-barite-analcime-albite-muscovite-thorite-Nb-rutile- CE aeschynite (near 8 in Fig 2) are inferred...composed of the assemblage aegirine-cancrinite-rutile with only trace amounts of albite, carbonate AC |  | | Report (issue) | | Lime-silicate rock__________________ Dikes..__-__________________________ Dikes within the complex.______________...______________ Tinguaite.._ ______________________ Sodalite trachyte._________________ Analcime-olivine melagabbro...30 34 39 39 39 39 42 42 44 46 47 Page Dikes Continued Dikes within the complex Continued Aplite_ __...syenite pegmatiteGarnet fourchite_ _ ________________ Dikes outside the complex _______________ Veins______..._____ Geochemistry of niobium ________________ Rutile and brookite.________________ Carbonatite_______--____- |  | | 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...Clear quartz with inclusions of golden thread-like rutile crystals — ■■ ■k ' k'?-’•' . 7 ■ ■- -•...Goodhousc on the Orange River cast of Vioolsdrif. In Namibia amethyst can be found north-east of Otjiwarongo |  | | Book | | quarry Miarolitic cavities in nepheline syenite Sodalite syenite Igneous breccia Pegmatites Marble xenoliths...the igneous complex. In nepheline syenite and sodalite syenite pegmatites, just as in the case of granitic...named Monteregie is now the current name of the region. he name Mont Saint-Hilaire is used interchangeably...what is now the Richelieu River and Lake Champlain region, Samuel de Champlain first named the mountain Mont...protecting the only remaining primeval forest in the region. THE EARLY SCIENTIFIC INVESTIGATIONS T he earliest |  | | Journal (article/letter/editorial) | | clinopyroxene, perovskite, biotite, apatite, titanite, sodalite and FeTi oxides, all present as phenocrysts in...geochemical trend from the least evolved ultramafic dikes (bulk XMg = 0.64) to syenitic compositions. The...remove incompatible elements from their source region (Hunter and McKenzie 1989). Their low viscosities...comprises a complete rock suite from near-primitive dikes to nepheline syenites. This enables modelling the...pillow breccias and hyaloclastites crosscut by mafic dikes form the Lower Unit, dated to 2.9– 2.0 Ma (Madeira |  | | Other Paper | | Pseudoleucite Crystals and Locations………………………………………... 30 Rutile Locations and Minerals………………………………………………………......Richardson Prospect…………………………………………………………. 35 York Rutile Prospect…………………………………………………………. 36 Nichols and...……………... 38 Christy Brookite Deposit (Vanadium Mine)………………………… 38 Old Highway Outcrops………………………………………………...Kimzey Magnetite Mine (Pit) and Surrounding Area………………………... 44 Chamberlain Creek Barite Mine……………………………………………...Quarry………………………………………………………………. Kimzey Magnetite Mine (Pit)………………………………………………………... Martin Marietta Jones |  | | Journal (issue) | | NVMC at 7:45pm 29 May Field trip to Nelson County rutile quarry 28 June General meeting of the NVMC at 7:45pm...the home 5 Rutile Quarry field trip 6 Nat.Geo. Terra Cotta Warrior Exhibit 7 Sodalite This! 8 Appetite...May 2010 Page 4 THE MINERAL NEWSLETTER Vulcan Mine Trip by Lew Holt This newby just recently returned...from his first rock watching trip to the Vulcan mine at Manassas. Boy howdy is this ever fun, and so...club members were most welcoming and helpful. The mine boss too. First he led us to a seventy foot bank |  | | 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 |  | | Book (edition) | | LayerStones 158 Jasper 162 = 48 Lapis Lazuli : 190 Sodalite Andradite 122 Uvarovite 122 124 Zircon Petrified...Pyrolusite Hercynite Rutile Sarcolite Scapolite Scheelite Sellaite Stolzite Synth. Rutile Tugtupite Vesuvianite...Rhodozite Rhodolite Schorlomite Senarmontite Silver Sodalite Spessartine Sphalerite Spinel Synth. Spinel Thorianite...Sarcolite 5%-6 Scorzalite 5%-6 Scapolite 54-6 Sodalite 5%-6 Tugtupite 5%-6 Brazilianite 5% Breithauptite...Oligoclase Orthoclase Petalite Prehnite Pyrite Rutile Sanidine NNNNNNWNNWNNWANNNN Smaragdite 64-7 % Sugilite |  | | Journal (issue) | | Endlichite and descloizite from the Chalk Mountain mine, Churchill County, Nevada ........................MALACHITE pseudomorph after azurite from Tsumeb, Namibia. The group is 3 inches tall, and is no. 8877 from...subscription = $44 195 Photo: Fishtail selenite mine in Coahuila, Mexico We don’t claim to be the largest...(such as the Blanchard mine, NM; Ojuela mine, Mapimi, Durango, Mexico; New Nevada mine, Batopilas, Chihuahua...Chihuahua, Mexico; and the San Fran cisco mine, Sonora, Mexico). We also have an active acquisition program |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...intrusive body of alkaline igneous rocks where sodalite was mined in the early 20th century, and where...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...blue-black and lustrous, though some which are coated by rutile or hematite are yellow or red and earthy; they |  | | Book (edition) | | Turquoise 142 Bloodstone 188 Lapis Lazuli 144 190 Sodalite 144 Dendritic Agate 146 114 Chrysoberyl Moss...Rhodozite Rhodolite Schorlomite Senarmontite Silver Sodalite Spessartine Sphalerite Spinel Synth. Spinel Thorianite...Powellite Pyrolusite Rutile Sarcolite Scapolite Scheelite Sellaite Stolzite Synth. Rutile Thorite Tugtupite...Oligoclase Orthoclase Petalite Prehnite Pyrite Rutile Sanidine 6-6% 6-6% 6-6% 6-6% 6-6% 6-6% 6-6% 6-6%...6-6% 6-6% 6-6% 6-6% 6-64 6-6% Scapolite 54-6 Sodalite 5%-6 Tugtupite 54-6 Brazilianite 5% Breithauptite |  | | 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...purine-porphyrine group). a nickel porphyrine. With quartz. rutile, piemontite, sursassite, ardennite, Triclinic. |  | | | | surrounded ce ne white calcite, from!iheBluebell Mine; Riondel, Digitized by the Internet Archive...groups are included. Corundum, spinel, cuprite, rutile, cassiterite, calcite, aragonite, dolomite, siderite...tourmaline, mica, feldspar, nepheline, zeolite, sodalite, bonded in a group around a central silicon atom...black, black), p. 66 chromite (black), p. 80 rutile (brown, dark red brown), p. 118 chromite, p. 80...(blue), p. 236 chrysocolla (blue green), p. 216 sodalite (blue), p. 234 Green chlorite (pale green), |  | | 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...same chemical makeup as anatase, are brookite and rutile. Despite the similarity in composition, there are...Massachusetts, United States ¢ Zimbabwe amed for the region of Spain where it was first discovered, andalusite |
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