 | | 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) | | cassiterite and numerous Nb, Ta-oxide minerals. At Lutsiro pegmatite, foordite is replaced by mosaic fine-grained...(Buttgenbach, 1933). Later, thoreaulite from Lutsiro, Rwanda, was shown to have Nb/Ta at. ratio > 1 (Thoreau...columbite after primary foordite from Lutsiro pegmatite, Rwanda, was described by Černý et al. (1988)...associated secondary minerals from the Manono, Maniema, Lutsiro, Urubu and Ungursai granitic pegmatites, the most...Urubu, Ungursai) or alluvial clastic sediments (Lutsiro). All primary occurrences belong to complex, Li-Cs-Ta-rich |  | Dewaele, S., De Clercq, F., Hulsbosch, N., Piessens, K., Boyce, A., Burgess, R., Muchez, Ph. (2016) Genesis of the vein-type tungsten mineralization at Nyakabingo (Rwanda) in the Karagwe–Ankole belt, Central Africa. Mineralium Deposita, 51 (2) 283-307 doi:10.1007/s00126-015-0608-x | Journal (article/letter/editorial) | | vein-type tungsten mineralization at Nyakabingo (Rwanda) in the Karagwe–Ankole belt, Central Africa S....deposit at Nyakabingo in the central Tungsten belt of Rwanda is located in the eastern flank of the complex...wolframite, while the second phase is formed by ferberite pseudomorphs after scheelite. These minerals occur...and the typical association of the W deposits in Rwanda, but also worldwide, with granite intrusions, W...Fluid flow . Karagwe–Ankole belt . Neoproterozoic . Rwanda . Tungsten mineralization Editorial handling: |  | | Journal (article/letter/editorial) | | quartz veins: Evidence from the Karagwe-Ankole Belt (Rwanda) Niels Hulsbosch a,⇑, Marie-Christine Boiron b...Nyakabingo deposit of the Karagwe-Ankole belt in Central Rwanda. The vein system (992 ± 2 Ma) is spatiotemporal...Gatumba–Gitarama leucogranite– pegmatite field of Central Rwanda (Central Africa), which is spatiotemporally related...studied in the granite-associated system of Central Rwanda. Muscovite compositional data, supported by recent...granite system The granite-associated ore province of Rwanda forms part of the Mesoproterozoic Karagwe-Ankole |  | | Report (issue) | | For each country having a tungsten deposit or district listed in the ISMI tungsten inventory...........wolframite ranges from the iron-rich variety, ferberite, containing 60.5 percent tungsten, to the manganese-rich...numerous mine closures (estimated at 85 percent of Western world mine capacity). In some cases, however, tungsten...Deposits in the former Soviet Union in the Dzhida district possibly are in this category. However, most placer...in arid regions of the former Soviet Union and Western United States. For example, the Searles Lake deposit |  | | Book (edition) | | Mineral few red- yes brown to none dark brown Ferberite strong orange yellow to brown brownish grey...internal reflections); Madenköy Mine, Çayeli, 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); Himmelsfürst 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 | | Semi-metallic/adamantine pink-purple, reddish-brown. Green River Formation, Uintah Co., Utah, USA. H= < 3, Dj4j=... Pearly white, greyish, greenish-white. Kipawa River, Timiskaming Co., Quebec, Canada. H= 5.5, Djjj=...Lustrous black. Wilagedera prospect. North Western Province, Sri Lanka. H= 3-4, 0^= 3.94, Dg= 3.97, VIIIE...Lustrous black. Wilagedera prospect. North Western Province, Sri Lanka. H= 3-4, Djjj= 3.94, D(.= 4.22...silvery-grey in reflected light. Bolshoi Anyui River basin, USSR (NE). 11=3.2, Djjj=?, D(.= 13.49, lA |  | | Book (edition) | | Cand CSPG Pennskiye gubemskiye wdomo.sti (Perm district ga=elle) Pl,ilosopl,ical Maga=ine Periodico de...Obshchestva xiv A □ Abclsonite, CJ1H32N4 Ni, tric., Western Oil Shale Corporation drill core WOSCO, Sec 36...Big Pack Mountain, northeast Quadrangle, Green River Formations, near Dragon, Uintah County. Utah, USA...Rafael swell about 47 miles southwest of Green River, Emery County, Utah, USA, 41. 82-90, 49, 1578-1602...Aktash mercury deposit, Kurai Range. Kosh-Agach district. Gomiy Altay. Russia. 58. 562. l'MR M" 111-129 |  | | Book (edition) | | expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Mt. (mount or mountain), Mts. (mountains), R. (river), Is. (island), Vole. (volcano), Penin. (peninsula)...the revolution in 1997. Its mineral rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga...Katanga administrative region again. The former Kivu province is now divided to three regions: INTRODUCTION |  | | Book | | pioneering work in organic geochemistry. Green River Formation, Uinta County, Utah, U.S.A. Trudell, L...L.C. (1970): Lithologic Description of Western Oil Shale Corporation Project Utah EX—]. Laramie Petroteum...(1989): Mineral. J. 14, 279. Flores mine, Huanuni District, Oruru, Bolivia. Agardite-(La) (La,Ca)Cu¢(AsO4)3(OH)6°3H20...name is derived from its occurrence at the Achates River (now Drillo) in southwestern Sicily. Mohs (1804)...Caria, an ancient country south of the Meander River in SW Asia Minor, from whence came the “alabandic |  | | Book (volume) | | Ca2B4O4(OH)7Cl·7H2O Locality: Salar de Carcote deposit, El Loa province, Antofagasta, Chile. Description: Colourless crystal...borax deposit, Salar del Hombre Muerto, Salta province, Argentina (type locality). Description: Colourless...Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar. Description:...at the Solongo boron deposit, basin of the Vitim river, southern part of the Vitimskoe plateau, Buryatia...KCa4B22O32(OH)10Cl·4H2O Locality: Satimola salt dome, Western Kazakhstan region, Kazakhstan. Description: Colourless |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | British Columbia NF Labrador (part of Newfoundland Province) MB Manitoba NB New Brunswick NF Newfoundland...Territory Queensland South Australia Tasmania Victoria Western Australia States, Mexico Aguascaientes Baja California...Co., Bonanza mine, Trinity Co., Michigan Bluff district, Placer Co., in AK, placers at Fairbanks, Iditarod...and quartz veins at Juneau. In Canada, Noranda district, PQ; Porcupine, Kirkland Lake, and Larder Lake...deposits, ON; Atlin and Caribou, BC; and Klondike district, YT. In Mexico, Altar and Magdalena, SON; Parral |  | | Journal (issue) | | the Blekinge province is not a southerly continuation o f the Svccokarclian orogenic province o f central...t can be correlated with the SW Swedish gneiss province, formed 1800-1650 m.y. ago. Rb-Sr whole-rock isochron...extent o f the L a i t i l a rapakivi batholith i n western Finland. M . Vaasjoki, P. Pihlaja & M . Sakko,...dyke, o f the North Atlantic Tertiary igneous province, range f r o m 4 3 . 8 t o 6 2 . 6 m . y. Interpreted...mineralizing activity in the St Andreasherg 01 district (southwest H a r z , F e d e r a l Republic o |  | | Book (edition) | | 75'. 1 79.57'. Z= I [PDF 29-20021. From the Green River Formation in (TL) Uintah Co .. Utah. USA. Named...(TL) Achtaragda (or Achtarynd.a ). trib. of Yilui river. Siberia. USSR. Named for locality. An aggregate...distinct banding. Named for an occurrence on the River Achates Axa'TTJ� in Sicily. although the nan1c achates...P. Butuzov ( 1 950 Ibid.) 79. 28. (TL) Aidyrly river. Urals. USSR. Named for locality. Aidyrlyit. mis-translitcration...unnecessary name. given for locality, (TL) Alazani river. Georgia. USSR. Albanite. organic material. C.I |
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