 | | Report (issue) | | c = 10.764(3) X-ray Powder Pattern: Buranga pegmatite, Rwanda. 4.210 (100), 2.241 (100), 1.726 (75)...72 [100.00] 100.00 30.35 1â (1) Buranga pegmatite, Rwanda; (OH) and H2 O confirmed by IR, corresponds...assemblage in a complex granite pegmatite (Buranga pegmatite, Rwanda; HaÌlsjoÌberg, Sweden.); in andesites... burangaite (Buranga pegmatite, Rwanda); trolleite, augelite, andalusite, rutile, topaz, quartz (Mt....Australia). Distribution: In the Buranga pegmatite, near Gatumba, Rwanda. On Mt. Perry, 75 km southwest |  | | 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) | | 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...Chanteloube, Limoges, alluaudite, 230 Piedmont zone, Western Alps, chromian jadeite, phengite, pumpellyite,...deerite, 25I Spain (Espafia) Cerro del Hierro, Province of Sevilla, goethite, 355 Italy (Italia) Beth...'hauchecornite', 875 Verkhne Dnieprovsk, Ekaterinoslav District, Ukraine, iron meteorite, I49 Turkey (Ttirkiye) |  | | 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) | | coexisting minerals such as apatite, crandallite and topaz, could be the key to their formation and distinction...Matsumoto Scholarship. REFERENCES 1, Buranga pegmatite, Rwanda (Von Knorring and Fransolet, 1977). 2...Andalusiteâbearing Roseki Ore Deposits in the Abu District, Yamaguchi Prefecture, Japan. Monthly Reports...(PO4)2(OH)2·H2O: a new species from the Buranga pegmatite, Rwanda. Neues Jahrbuch fĂŒr Mineralogie, Monatshefte...Hinomaruâ Nako mine, Abuâcho, Yamaguchi Prefecture, Western Japan. Memoirs of the National Science Museum, |  | | 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; |  | | Journal (article/letter/editorial) | | other lithium minerals except in the Mterikati pegmatite. Lithiophorite is the only other lithium mineral...the Dam Site pegmatite. The refractive indices of montebrasite from the Benson 2 pegmatite (no. 13, table...replaces montebrasite in a sample from the Bikita pegmatite and members of the goyazite and possibly of the...in six perthite-rich pegmatites from the Miami district of Rhodesia appears to be manganoan fluorapatite...from the Bulema pegmatite (Kigezi, Uganda) have r 1.633 and 1-639. In the Bikita pegmatite, the grain-size |  | | Journal (article/letter/editorial) | | explanation of anomalous optical properties of topaz, 237 ALABASTER (C. J.), Analcime from the L. Lias...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 |  | | Journal (article/letter/editorial) | | the JaÌlama batholith in the NavasfrıÌas 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 |  | Galliski, M. A., Cerny, P., Marquez-Zavalia, M. F., Chapman, R. (2012) An association of secondary Al-Li-Be-Ca-Sr phosphates in the San Elias pegmatite, San Luis, Argentina. The Canadian Mineralogist, 50 (4) 933-942 doi:10.3749/canmin.50.4.933 | Journal (article/letter/editorial) | | SECONDARY AlâLiâBeâCaâSr PHOSPHATES IN THE SAN ELĂAS PEGMATITE, SAN LUIS, ARGENTINA Miguel Ă. GALLISKI§ IANIGLA...phosphates from the Li-bearing, rare-element San ElĂas pegmatite in the Eastern Pampean ranges of Argentina shows...hydroxylapatite formed after PâT equilibration between the pegmatite and its host rock along the path of metamorphic... Sr and minor S from the host rocks into the pegmatite (at about <300°C); (iii) at a still lower T, the...previous alteration stages. Keywords: granitic pegmatite, phosphate alteration, montebrasite, hydroxylherderite |  | | Journal (article/letter/editorial) | | (mainly Rwanda and the DR Congo), around the Kenticha mine (Ethiopia) and in the Alto Ligonha Province (Mozambique)...columbite-tantalite is typical of the Alto Ligonha Province (Mozambique), the Arabian-Nubian Shield (Egypt...1992; ÄernĂœ et al., 2005). The provenance of pegmatite magmas remains poorly understood. Based on a study...afïŹliation and rare-element signature of the granite-pegmatite systemsâ. Peraluminous granites and associated...deïŹned and include, in order of relative importance, Rwanda, the Democratic Republic of the Congo (DRC), Mozambique |  | | 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 |  | Ć tevko, Martin, Sejkora, JiĆĂ, Uher, Pavel, CĂĄmara, Fernando, Ć koda, Radek, VaculoviÄ, TomĂĄĆĄ (2018) Fluorarrojadite-(BaNa), BaNa4CaFe13Al(PO4)11(PO3OH)F2, a new member of the arrojadite group from GemerskĂĄ Poloma, Slovakia. Mineralogical Magazine, 82 (4) 863-876 doi:10.1180/minmag.2017.081.066 | Journal (article/letter/editorial) | | quartz veins intersecting highly fractionated, topazâzinnwaldite S-type leucogranite. Fluorarrojadite-(BaNa)...occurring in the Veporic and Tatric Units of the Western Carpathian crystalline basement; they are enriched...viitaniemiite) is limited only to the highly fractionated topazâzinnwaldite leucogranite (Ć tevko et al., 2015)....NIST SRM 610 NIST SRM 610 titanite fluorapatite topaz 0.18 0.18 0.08 0.12 0.03 0.11 0.46 0.55 0.09 0...fluoarrojadite-(BaFe) from the Sidibou-Kricha pegmatite in Morocco by Chopin et al. (2006) and it was |  | | Journal (article/letter/editorial) | | Connoisseurâs Choice nominations arise. Tourmaline, topaz, and amethyst were suggested, but quickly it was...No. 1 mines, also in Grafton County; and the pegmatite at the G. E. Smith mine near Newport, Sullivan...The site was correctly ascribed to the Moscovita district of Conselheiro Pena Township. Conselheiro Pena...and Cdrrego Frio became part of the Lin6polis district of Divino das Laranjeiras Township. Cassedanne...odd paleocave occurrence at Anniesfontein, Cape Province, South Africa; hydrothermal veins in the Colette |  | | Journal (article/letter/editorial) | | horizons of the Stari Trg P b - Z n mine (Trep6a), province of Kosovo. Childrenite is generally accepted to...include bermanite (Hurlbut and Aristarain, 1968), topaz (Akizuki et al., 1979), stilbite (Akizuki and Konno...explanation of anomalous optical properties of topaz. Mineral Mag 43:237-241 Akizuki M, Konno H (1985)...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. |  | Hien-Dinh, Thi Thu, Dao, Duy Anh, Tran, Tam, Wahl, Michael, Stein, Eckardt, GierĂ©, Reto (2017) Lithium-rich albiteâtopazâlepidolite granite from Central Vietnam: a mineralogical and geochemical characterization. European Journal of Mineralogy, 29 (1) 35-52 doi:10.1127/ejm/2017/0029-2581 | Journal (article/letter/editorial) | | 1127/ejm/2017/0029-2581 PrePub Article 2 Lithium-rich albiteâtopazâlepidolite lepidolite granite from Central Vietnam:...discovered in the La Vi mining district, located in Quang Ngai Province, Central Vietnam. The Li-rich...montebrasite, herderite, ïŹ ïŹuorapatite, uorapatite, topaz, and cassiterite, as well as accessory beryl and...that the unique features of the rare albite albiteâtopazâlepidolite granites are probably of secondary rather...Key-words: Li-rich micas; lithium; albiteâtopazâlepidolite topazâ topaz âlepidolite granite; lepidolite; amblygonite; |  | | 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) | | chemistry of eosphorite from Chamachhu (Skardu District, Baltistan, Pakistan) 2+ [(Mn2+ 0.94Fe 0.06Al0...a granitic pegmatite outcropping in the area of Chamachhu (Changmachhu), Skardu district, Baltistan,...by muscovite, lepidolite, spessartine, elbaite, topaz, beryl (gem aquamarine and morganite), pollucite...1301 Fe phosphate minerals from the Buranga Pegmatite, Rwanda. Mineralogical Magazine, 43, 1015â1023... A.U., and Nizamoff, J.W. (2003) PegmatologyâPegmatite Mineralogy, Petrology and Petrogenesis, 176 p |  | Melcher, Frank, Graupner, Torsten, GĂ€bler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, OberthĂŒr, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalumâ(niobiumâtin) mineralisation in African pegmatites and rare metal granites: Constraints from TaâNb oxide mineralogy, geochemistry and UâPb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) | | 3.2. Kamativi Schist Belt (western Zimbabwe) 4.3.3. Orange River Pegmatite Belt (Namibia, South Africa)...Radiometric data 4.4.2.2. Mineralogy 4.4.3. Alto-Ligonha Province (northern Mozambique) 4.4.3.1. Radiometric data...3.2. Kamativi Schist Belt 5.3.3. Orange River Pegmatite Belt 5.4. Late Neoproterozoic to early Paleozoic...Pegmatites of Ethiopia and Somalia 5.4.3. Alto-Ligonha Province (Mozambique) 5.4.4. Damara Belt (Namibia) 5.4...presented for 13 rare-element granite NU and pegmatite districts in Africa, covering Archean, Paleoproterozoic |  | | 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 |  | | Journal (article/letter/editorial) | | mineral phases from the KrĂĄsno  HornĂ Slavkov area, western Bohemia, Czech Republic NovĂ© minerĂĄlnĂ fĂĄze z oblasti...mineral species  from KrĂĄsno  HornĂ Slavkov, western Bohemia, Czech Republic. The phases characterized...mineralization in the HornĂ Slavkov  KrĂĄsno ore district, presented in this issue of the Journal (Beran...selected: KĂĄ lines: F (PC1, 160 fluorapatite/topaz), Mg (TAP, forsterite), Na (TAP, albite), Al (TAP...mineral from the Geschieber vein in the JĂĄchymov ore district (KruÂnĂ© hory, Czech Republic). The samples from |  | | Book | | Sciences Harald G. Dill The HagendorfPleystein Province: the Center of Pegmatites in an Ensialic Orogen...Pirajno, Geological Survey of Western Australia, and The University of Western Australia, Perth, Australia...com/series/7377 Harald G. Dill The Hagendorf-Pleystein Province: the Center of Pegmatites in an Ensialic Orogen...quartz at the core of the pegmatite is concerned. In comparison with other pegmatite deposits in the area...area, however, the Hagendorf-Pleystein Pegmatite Province (HPPP) is not only the largest concentration of |  | | Book (edition) | | Dzhalindite cruciform and Vshaped Gypsum Erythrine Topaz simple twins Bustamite lamellar Rhodonite yes...internal reflections); Madenköy Mine, Ăayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL...grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL B Same sample as above:...grey); HimmelsfĂŒrst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Sachsen, Germany (sample: Seifert);...Carletonville, Western Sector, Far West Rand (West Wits Line), Witwatersrand field, Gauteng Province, South Africa; |  | | 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 (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 . . . . . . . . . . . . . . |
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