 | | Journal (article/letter/editorial) | | Mineralization Kiharan Proterozoic Central Africa Pegmatite 1. Introduction The middle Proterozoic Kibaran...southwest, through Zaire, Burundi, Tanzania, and Rwanda to southwest Uganda in the north northeast. Its...Rift and a northeastern province covering Burundi, Rwanda, the west lake district of Tanzania, and southwest...Cumulative cassiterite production in the northeastern province, for example, may be estimated at approximately...No-Nyarnulilo W; Rh-Ruhiza W. Rwanda: B-Bugarama W; Bu-Buranga pegmatite; Mi-Miyovc Au; Bi-Bisesero Au; |  | | Journal (article/letter/editorial) | | Somerset, calcite, baryte, celestine, sphalerite, pyrite, chalcopyrite, analcime, 76I Castleton, Derbyshire...Cornwall, luxullianite, 441; 442 Scar Crag, Lake District, arsenopyrite, alloclase, glaucodot, cobaltian...samples, I65 IRELAND Currywongann, Connemara, acid pegmatite and orthopyroxenite, 473 CHANNEL ISLANDS Chouet...diorite and associated rocks, 919 Le Pulec, Jersey, pyrite, marcasite, arsenopyrite, sphalerite, ferroan dolomite...Chanteloube, Limoges, alluaudite, 230 Piedmont zone, Western Alps, chromian jadeite, phengite, pumpellyite, |  | | Journal (article/letter/editorial) | | Kibaran orogenic belt extending lrom Uganda. through Rwanda and Kivu. Maniema and Shaba provinces o l Zaire...belt. Another characteristic. lithiumbearing pegmatite procince is lound in the basement rocks o f Zimbabwe...Cassiterite 1. Introduction Although the major granite pegmatite regions of Africa have been known for a long time...demand. The present study reviews the principal pegmatite regions in Africa, where extensive mining of minerals...paid t o the mineralogy and geochemistry of the pegmatite deposits, and in particular t o tin and tantalum |  | | Journal (article/letter/editorial) | | both within the belt and in foreland troughs. The western molasse and the whole belt were again orogenically...southwest, through Zaire, Burundi, Tanzania and Rwanda to southwestern Uganda in the NNE. Its overall...Rift and a northeastern province covering Burundi, Rwanda, the West Lake district of Tanzania and southwest...southwest Uganda. The northeastern province is the main subject of this paper (Fig. 2 ). Since the discovery...No---Nyamulilo W; Rh--Ruhiza W. Rwanda: B---Bugarama W; Bu--Buranga pegmatite; Mi--Miyove Au; G--Gifurwe W; |  | | Report (issue) | | mine, California, USA); arsenopyrite, stannite, pyrite, andorite, cassiterite, zinkenite (Bolivia). Distribution:...Sweden. At Mbale, Uganda. In the Buranga pegmatite, near Gatumba, Rwanda. In the USA, large crystals from...Pennington Co., South Dakota; in the White Picacho district, Maricopa and Yavapai Cos., Arizona. From the |  | | Journal (article/letter/editorial) | | belts, which extend over 700 km from the Katanga Province (Southeastern Congo) to Uganda, were formed by...by the Mesoproterozoic collision of the Western Congo Craton, with the Eastern Tanzanian, Bangweulu, and...KaragweAnkole Belt (KAB) to the northeast (Burundi, Rwanda, and Uganda). The KIB is separated from the KVB...± 23 Ma [30]. Furthermore, extensive dating in Rwanda, based on Rb/Sr, was invalidated in [17] using...and 1956. N. Varlamoff expanded his fieldwork to Rwanda and Burundi between 1960 and 1969 in order to study |  | | Journal (article/letter/editorial) | | their unusual mineral species. The Palermo No. 1 pegmatite is located in the White Moun tains of central...North Groton. Its surround ings and even the pegmatite itself are unpretentious. The min erals of greatest...issue of Rocks and Minerals entitled " T h e Pegmatite Minerals of the Palermo Quarry." Verrow's mineral...served to reveal the truly rich mineralogy of this pegmatite. By the end of the 1943 mining season, General...working primarily on the phosphates of the Palermo pegmatite. In May o f 1974, the mineral rights to the quarry |  | | Report (issue) | | Total 99.56 (2) 0.72 0.30 99.65 (1) Mount Wills pegmatite field, Victoria, Australia; corresponds to 0.95Na0...Triphylite, arrojadite, satterlyite, wicksite, wolfeite, pyrite. Distribution: Numerous occurrences: in the La...the Varuträsk pegmatite, Västerbotten, Sweden. In England, at the Tremearne pegmatite, Breage, Cornwall...Sidi-Bou-Othmane, Morocco. From the Buranga pegmatite, near Gatumba, Rwanda. In Zimbabwe, at Mterikati, Miami...at the Tsaobismund pegmatite, 60 km south of Karibib. In the Mount Wills pegmatite field, Victoria, Australia |  | | Journal (article/letter/editorial) | | Alluaudite, Sweden, Finland, Bavaria, S. Dakota, Rwanda, New Hampshire, Morocco, and SW AJHca, complex...B.), 789 Arrojadite family, S. Dakota, Morocco, Rwanda, Brazil, New Hampshire, Connecticut, Maine, nomenclature...nickel-bearing aluminium serpentine (septechlorite) from Western Australia: Discussion, 55i; - - and WARNE (S. ST...amorphous copper carbonate from the Carr Boyd Mine, Western Australia, 97 BRINDLEY (G. W.), Motukoreaite--additional...diorites and associated rocks of Chonet, north-western Guernsey, Channel Islands, 9x9 BURKE (E. A. J.) |  | | Journal (article/letter/editorial) | | the Jálama batholith in the Navasfrı́as Sn-W District, Salamanca, Spain T. LLORENS* AND M. C. MORO...crystallized to form a group of intra-granitic pegmatite dykes, which are hosted by its outermost facies...fractures to form the Cruz del Rayo field of pegmatite dykes, which are hosted by pre-Ordovician low-grade...series. A strong albitization of the granitic and pegmatite rocks led to the replacement of the primary assemblage...interaction. Introduction SECONDARY granite and pegmatite phosphates have been extensively documented (e |  | | Journal (issue) | | Richard A. Bideaux M ineralogist feature articles Pegmatite Phosphates: Descriptive Mineralogy and Crystal...Supply Co. $65.00. The Mineralogical Record Pegmatite Phosphates: Descriptive Mineralogy and Crystal...phosphate minerals, which occur at all stages of pegmatite genesis, are among the most extensive of any mineral...interest in them than mineralogists. No doubt, the pegmatite phosphates prove most reward ing collecting material...collectors overlook them so that many of the classical pegmatite localities, presently abandoned, still may yield |  | | Journal (article/letter/editorial) | | 7 . 2 , 3 6 ' O deposit at Kapijimpanga, N.W. Province, Zambia, associated 16.6; sum 99.8, 101'0, 101'2...incrustation between quartz crystals and bismite, Mbale pegmatite, S'W' Uganda. Spectrographicanalysisshows major...determinationsgave Fe 4O.4 (Fe standard), 39.2 (pyrite standard), av. 40.4 percent. It contained more...KNonnrNc (1972) Phosphateminerals from Buranga pegmatite, Rwanda. Annu. Rep. Res. Inst. African Geol. Uniu |  | | Book | | MINERALS& GEMSTONES of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published...East African resources 12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties...is not commonly known that neighbouring Uganda, Rwanda and Burundi are also sources of some interesting...the gem-quality tourmaline that can be found in Rwanda). Literature on the subject is limited; the previous...of the five featured countries - Burundi, Kenya, Rwanda, Tanzania and Uganda - and introduces the reader |  | Števko, Martin, Sejkora, Jiří, Uher, Pavel, Cámara, Fernando, Škoda, Radek, Vaculovič, Tomáš (2018) Fluorarrojadite-(BaNa), BaNa4CaFe13Al(PO4)11(PO3OH)F2, a new member of the arrojadite group from Gemerská Poloma, Slovakia. Mineralogical Magazine, 82 (4) 863-876 doi:10.1180/minmag.2017.081.066 | Journal (article/letter/editorial) | | occurring in the Veporic and Tatric Units of the Western Carpathian crystalline basement; they are enriched...Mn-rich siderite to rhodochrosite, arsenopyrite, pyrite, bismuthinite, kobellite, tintinaite, giessenite...fluoarrojadite-(BaFe) from the Sidibou-Kricha pegmatite in Morocco by Chopin et al. (2006) and it was...triphylite from the Nanping No. 31 granitic pegmatite in Fujian Province, China by Rao et al. (2014). The sample...arrojadites in the literature. Only the sample from Buranga (Rwanda) (von Knorring, 1969) has a higher Mn-content |  | | Journal (article/letter/editorial) | | horizons of the Stari Trg P b - Z n mine (Trep6a), province of Kosovo. Childrenite is generally accepted to...pyrrhotite, arsenopyrite, sphalerite, chalcopyrite, pyrite, illite, quartz, (Fe, Mn) carbonate, boulangerite...M n - F e phosphate minerals from the Buranga pegmatite, Rwanda. Mineral Mag 43:1015-1023 Ginzburg A,...Canadian Mineralogist 14:498-502 Moore PB (1973) Pegmatite phosphates: mineralogy and crystal chemistry. |  | | Journal (article/letter/editorial) | | mineralization in the Hagendorf-Pleystein pegmatite province H. G. DILL1,*, B. WEBER2, A. GERDES3 AND...Silbergrube Aplite (SA) in the Hagendorf-Pleystein Pegmatite District, near Waidhaus, Germany, is a mildly peraluminous...operating feldspar mine in the Hagendorf-Pleystein Pegmatite Mining * E-mail: dill@bgr.de DOI: 10.1180/minmag...Mineralogical Society District in Bavaria, Germany. The Hagendorf pegmatite is one of the biggest feldspar-quartz...feldspar-quartz pegmatite deposits in Europe, and has produced 4.4. Mt of ore (Forster et al., 1967) (Fig |  | Dill, H. G., Skoda, R., Weber, B., Berner, Z. A., Muller, A., Bakker, R. J. (2012) A Newly Discovered Swarm of Shear-Zone-Hosted Bi-As-Fe-Mg-P-Rich Aplites and Pegmatites in the Hagendorf-Pleystein Pegmatite Province, Southeastern Germany: A Step Closer to the Metamorphic Root of Pegmatites. The Canadian Mineralogist, 50 (4) 943-974 doi:10.3749/canmin.50.4.943 | Journal (article/letter/editorial) | | AND PEGMATITES IN THE HAGENDORF–PLEYSTEIN PEGMATITE PROVINCE, SOUTHEASTERN GERMANY: A STEP CLOSER TO THE...Miesbrunn pegmatite–aplite swarm (MPAS), part of the Hagendorf–Pleystein pegmatite province, southeastern...of mineralization at the deepest parts of the pegmatite, close to its root zone, and on the other, within...pegmatites (i.e., not exposed). Keywords: shear zone, pegmatite–aplite swarm, phosphate, sulfide, arsenide, Miesbrunn...investigated in France, Finland, Germany, Namibia, Rwanda, Spain and the Czech Republic (Čech et al. 1961 |  | | Journal (article/letter/editorial) | | GEOCHEMISTRY OF PHOSPHATES AND SILICATES IN THE SAPUCAIA PEGMATITE, MINAS GERAIS, BRAZIL: GENETIC IMPLICATIONS Maxime...The Sapucaia pegmatite is located in the well-known Eastern Brazilian Pegmatitic Province (EBPP), Minas...Minas Gerais, Brazil. Detailed mapping of the pegmatite body revealed five zones, showing distinct mineral...quartz core (Q). Phosphate masses found in the pegmatite contains two different assemblages: assemblage...geochemically primitive LCT-type pegmatite. The degree of differentiation of the pegmatite increases from the border |  | | Journal (volume) | | Mineralization in the Migori Greenstone Belt, Macalder, Western Kenya: J. S. Ogola. . . . . . . . . . . . . . ...Precambrian Gabbro- anorthosite Complexes, Tete Province, Mozambique: M. W. C. Barr and M. A. Brown .....Discussion with Reference to the Niger-Nigerian Province: J . Kinnaird and P. Bowden . . . . . . . . ....Goedynamic Significance of Alkaline Magmatism in the Western Mediterranean Compared with West Africa : B. Bonin...Geochemical Characteristics of the Nigerian Anorogenic Province: R. A. Batchelor . . . . . . . . . . . . . . |  | | Book (edition) | | colours of bornite (brown), chalcocite (blue), and pyrite (creme). 2 Reflectance Reflectance relates to...internal reflections. Isotropic minerals, such as pyrite or galena, do not show bireflectance. Left: Radial...anisotropy. In rare cases, isotropic minerals, such as pyrite or galena, may show an anomalous anisotropy due...transmitted light). Left: The polishing hardness of pyrite (creme) is much higher than that of graphite (brownish...grey), which shows grooves at the contact with pyrite, leading to a strong relief. 4 Cleavage Cleavage |  | Baijot, Maxime, Hatert, Frédéric, Dal Bo, Fabrice, Philippo, Simon (2014) Mineralogy and petrography of phosphate mineral association from the Jocão pegmatite, Minas Gerais, Brazil. The Canadian Mineralogist, 52 (2) 373-397 doi:10.3749/canmin.52.2.373 | Journal (article/letter/editorial) | | PHOSPHATE MINERAL ASSOCIATIONS FROM THE JOCÃO PEGMATITE, MINAS GERAIS, BRAZIL Maxime BAIJOT, Frédéric...Jocão pegmatite (or Cigana) is located in the well-known Eastern Brazilian Pegmatitic Province (EBPP)...mineral masses were collected from the dumps of the pegmatite: association I is composed of dendritic triphylite...genetic sequence, secondary phosphates, Jocão pegmatite, Brazil § E-mail address: fhatert@ulg.ac.be...most important pegmatite provinces in the world, the Eastern Brazilian Pegmatite Province (EBPP), is located |  | | Book | | phosphorus handbook. Wiley. New York Moore PB (1982) Pegmatite minerals ofP(V) and B(III). Mineral Assoc Can...Mode of Occurrence: Occurs in large masses in pegmatite at several mines in the Custer-Pringle area, Custer... South Dakota. Also found in pegmatite at Chanteloube, France; Buranga, Ruanda; Varutrask, Sweden; Sukula...Sukula and Lemnas, Finland; and in several other pegmatite deposits Amblygonite Optical Constants: IX...in Miocene clay at Bellaver de Cerdena, Gerona Province, Spain; in a bituminous clay rock at Messel, Hesse |  | | Journal (article/letter/editorial) | | phoshate mineral associations of the Tsaobismund pegmatite, Namibia Andr6-Mathieu Fransolet l, Paul Keller...phosphate minerals occurring in the Tsaobismund pegmatite. This investigation is complemented by wet chemical...processes have been recognized in the Tsaobismund pegmatite: (i) the Mason-Quensel sequence results from a...Frommurze et al. 1942), with the description of the pegmatite bodies (Cameron 1955), and with the evolution...so far about the phosphate minerals in these pegmatite, except some short descriptions (Keller 1974, |  | Dill, H. G., Melcher, F., Gerdes, A., Weber, B. (2008) THE ORIGIN AND ZONING OF HYPOGENE AND SUPERGENE Fe-Mn-Mg-Sc-U-REE PHOSPHATE MINERALIZATION FROM THE NEWLY DISCOVERED TRUTZHOFMUHLE APLITE, HAGENDORF PEGMATITE PROVINCE, GERMANY. The Canadian Mineralogist, 46 (5) 1131-1157 doi:10.3749/canmin.46.5.1131 | Journal (article/letter/editorial) | | DISCOVERED TRUTZHOFMÜHLE APLITE, HAGENDORF PEGMATITE PROVINCE, GERMANY Harald G. DILL§ and Frank MELCHER...Trutzhofmühle (THM) at the western border of the Hagendorf Pegmatite Province, Germany. We describe the...silicates. In contrast with the neighboring Hagendorf pegmatite, the magmatic and hydrothermal phosphate mineralization...ablation, Trutzhofmühle, Hagendorf Pegmatitic Province, Germany. Sommaire Une venue aplitique contenant...Trutzhofmühle (THM), à la limite occidentale de la province pegmatitique de Hagendorf, en Allemagne. Nous |  | | Book (edition) | | of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing...(e.g., carbon as diamond and graphite, FeS, as pyrite and marcasite). polytype A type of polymorph due...County, Utah, associated with authigenic orthoclase, pyrite; quartz, dolomite, and analcime. SELECTED REFERENCE:...Colorado at the Pelican Dives mine, Silver Plume district, and at the Little Emma mine, Clear Creek County;...lode, Summit County, and in the Cripple Creek district. It is also found in Canada; Mexico; Bolivia; |
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