 | | Journal (article/letter/editorial) | | Min., Bol. 209, Rio de Janeiro 1964. DE MORAES, L.J.: Dep6sitos diamantlferos no norte do Estado de Minas...Bol. 8, Rio de Janeiro 1934. - - : Geologia Geral. - - Serv. Fore. Prod, Min., Bol. 19, Rio de ]aneiro...142, Rio de Janeiro 1968. PFLU~, R., SCHOBnENaAUS, C., & RENGES, F.: Contribuig~o ~ geotect6nica do Brasil...Bahia. - - Min. e Met,, 15, Rio de Janeiro 1951. SCHOgZENHAUS, C.: Sure,rio da geologia da Quadrieula Ibitiara...Ibitiara, Bahia, Sure,rio da geologia da Quadrieula de Paramirim, Bahia. - - SUDENE, Div. Geol., Bol |  | | Journal (article/letter/editorial) | | e d i n t h i s i n d e x . Acari, Rio Grande do Notre, Brazil, Bismutotantalite, 785. Adularia,Zambia...India, 1018. Alto Feio, Pedra Lavrada, Paraiba, Brazil, bismoclite, bismuth, bismutite, 785. Alunite,...li. Arrojadite, Brazil, d.t.a., 427. Arsenic, geochemistry of, 88. Arsenobismite, Brazil, 785. Artern,...Bancroft, Ontario, peristerite, 165. Barbosalite, Brazil, 784. Barium feldspars, see Barinm-orthoclase,...Bearpaw Mtns., Montana, pseudoleucite, 596. Benallt mine, Rhiw, Caernarvonshire, celsian, 508. Berek compensator |  | | Journal (article/letter/editorial) | | wo]framite, 995. Pengenna mine, St. Kew: meneghinite, 424. South Terras mine, St. Stephen-in Brannel:...argentojarosite, li. WALES Benallt mine, Rhiw, Caernarvonshire: celsian, 508. Clogau mine, Dolgelly, ~ier.ionethshire:...ionethshire: tellurbismuth, 424. Vigra mine, Dolgelly, Merionethshire: tellurbismuth, 424. SCOTLAND Morar...e c h o s l o v a k i a (~eskoslovensko) Plavno mine, Krus'~ tlory, Bohemia: stannian andradite, 379...varlamoffite, 622. Japan Kaso mine, Tochiga : kasolte, 508. Nodo Tamagawo mine, Iwate prefecture: barium-orthoclase |  | | Journal (issue) | | rubis sur gangue, etc ... De 100 g à 10 kg pièce. Grande variété de pierres taillées, précieuses et semi-précieuses...Ti:lt·plm11<' iJt,.95.·16 • DIRECTEUR 28 LES VIÉ. Nive mine 33 ITINÉRAIRES MINÉRALOGIQUES AU BRÉSIL. par J...J. et J. CASSEDANNE. Les environs de Currais Novos, différents gisements facilement accessibles et riches...récente, ce japse devient déjà rare. Il présente une grande variété de couleurs : vert, rouge, ocre, brun et...est naturellement fonction de la plus ou moins grande rareté de la pierre brute, mais avant tout de la |  | | Journal (article/letter/editorial) | | of clinozoisite/ zoisite, grossular, quartz, plagioclase, etc. are the most important host rocks for tungsten...Brodtkorb et al. 1977; Delakowitz 1987; Hack 1987; NE Brazil, Beurlen et al. 1982; Busch 1981; Reid 1983; Bro-...clinozoisite/ zoisite, grossular-rich garnets, quartz, plagioclase as major, ___calcite, ___biotite, + amphibole...grossular, clinozoisite/zoisite, calcite, quartz, plagioclase and clinopyroxene. Using the CaO-A1203-SiO2-H20...0 2 "~ [ H 20 (1) zoisite - anorthite-rich plagioclase - calcite 2 Z o + 1C02 = t C c + 3 A n + 1 H |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Crystal of multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais...(Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo...pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals - Brazil 4. Minerals- Classification... Mineralogy 6. Mineralogy - Brazil - History 7. Precious stones - Brazil I. Bartorelli, Andrea. II. Title |  | Amstutz, G. C., Goresy, A. El, Frenzel, G., Kluth, C., Moh, G., Wauschkuhn, A., Zimmermann, R.A. - Eds. (1982) Ore Genesis. Springer Berlin, Heidelberg. doi:10.1007/978-3-642-68344-2 | Book | | block I experienced recently when visiting a gold mine in virtually unmetamorphosed ground. A fault cuts..."common sense" observations described from the gold mine with the chert and the organic matter. Another potent...Alterations of Conglomeratic Uranium Ores, Pronto Mine, Ontario, Canada E.Wm. Heinrich (With 1 Figure)...Observations on Ore Rhythmites of the Trzebionka Mine, Upper Silesian-Cracow Region, Poland L. Fontbote...the Cobaltite-Gersdorffite Series from the Raipas Mine, Finnmark, Norway F.M. Vokes and G.S. Strand (With |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | deposits of such minerals in adjacent areas of Brazil and Venezuela suggest that eastern Colombia may...deposits, based on analogy with adjacent areas in Brazil and Venezuela. An initial reconnaissance should...Domain 25 Deposit Description Emeralds in plagioclase-dolomite veins in black shale, associated with...Cretaceous and early Tertiary age Rio Suclo; East tributaries of Rio Atrato and Rio San Juan Accreted Island...anomalies Indicate shallow basement near headwater of Rio San Juan Terrane: Domain #3. CORDILLERA OCCIDENTAL |  | | Report (volume) | | based on considerations that extend far beyond the mine itself, in some instances relating to the overall...another. This goal is difficult to attain, because we do not always know which features are site specific...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes...Valley type is the presence of secondary dolomite. But do we know that this is essential? Suppose a deposit...figures; nevertheless, the grade-tonnage figures given do represent material that the company or the government |  | | Book | | incompletely characterized hydromicas-these nebulous species do not form visible crystals and in themselves are never...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...Trimble and Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals...Oblast. Alpine-type clefts in the famous Dodo quartz mine commonly contain ilmenite, occurring as lustrous |  | | Report (issue) | | Afghanistan _______________________________ _ 215 Brazil ____________________________________ _ 215 Chile...06 ppm), and chlorine ( 0.04 percent). Gold Acres mine, Nevada.-T. J. Armbrustmacher found anomalously...several metals in rocks from the Gold Acres open-pit mine, Lander County, north-central Nevada. Titanium,...inclusions, and local variations of elements within the mine, suggest the imprint of at least two sequences of...below the top of the ore zone at the Carlin gold mine, Eureka County, Nev., by T. E. Mullens and J. F |  | | Report (issue) | | Summary by countries. ________________-_-_----Brazil--.-.---.. -__---._------------------CENTO _ -_...of 8 to 10 sq mi in the vicinity of the King Tut mine. The gold content of these arroyo gravels is highly...The COLORADO prospect and the Karla Kay uranium mine, 2 miles west-northwest, appear to lie on the same...and T. J. Armbrustmacher show that the open-pit mine at Gold Acres, Lander County (loc. 4) ? li®8 in...mapping by A. S. Eadtke in and around the Carlin gold mine in Eureka County (loc. 8) , shows that the gold |  | | Book | | interrelationships, it is no surprise that these metallic elements do occur as ore concentrations in the mantle and its...solvent and the solute are of nearly the same size, do not form intermediate compounds and have the same...which it enclosed. Additional patterns show plagioclase corroded and replaced by later magnetite which...other cases a pyroxene rim is formed between the plagioclase and the magnetite which might represent a reaction...abundant in arsenopyriterich samples from Wongabah Mine, characteristically forming aggregates of fibrous |
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