 | | Journal (article/letter/editorial) | | the 120 ROCKS & MINERALS Wendy pit at the Tambo mine is associated with hydrothermal breccias that have...and anthraxolite are common in pockets but usually do not form well-crystallized specimens of interest...MINERALS FROM THE SKARN OF MINA BREJUI, RIO GRANDE DO NORTE, BRAZIL. A. U. Fedster’, L. B. dn Silvn Neil2...Pernambuco, Brazil. Unusual small pyrite crystals occur in the skarn of Mina Brejui near Currais Novos in the...the state of Rio Grande do Norte, Brazil. The skarn body is presently being mined for tungsten. Among |  | | 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, 529. AITKEN (W. W. SMITH),Weathering of phlogopite, 151. Akagan6ite, synthesis, dehydration, X-ray...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, |  | | 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...Tiruehirappali district, Madras : cordierite, kornerupine, phlogopite, sil]imanite, 662. JRatanpur, Madhya Pradesh: |  | | Journal (article/letter/editorial) | | Brodtkorb et al. 1977; Delakowitz 1987; Hack 1987; NE Brazil, Beurlen et al. 1982; Busch 1981; Reid 1983; Bro-...relatively high contents in N a 2 0 and K 2 0 biotite/ phlogopite, muscovite, alkali feldspar and amphiboles (often...dolomite, calcite and quartz. Since these rocks normally do not contain scheelite they are not considered further...ments into the scheelite lattice; all other elements do not show statistically significant correlation with...tectonic and crystallographic features in Brejui mine, NE Brazil. In: Ore Genesis The State of the Art, |  | | 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 |  | | 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 (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 |  | | Report (issue) | | highest-lying diamond pipe. Commissioning Letseng mine at 10 500 feet during the last two years has called...se IRON (LIBERIA) LEAD (AUSTRALIA) > IRON (BRAZIL) —- LIMESTONE (CURACAO) ASBESTOS (AUSTRALIA)...Whatever you're mining, wherever you're mining, mine it on Bridgestones Bridgestones — for all the variables...Operating conditions differ enormously from mine to mine. Not only are there variations in the kind of...off-the-road tires. No matter what the conditions are, we do our utmost to build the tire to meet them. Utilizing |  | | 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...abundant in arsenopyriterich samples from Wongabah Mine, characteristically forming aggregates of fibrous...However, limonite can replace a number of minerals that do not necessarily contain iron. Fig. 225 shows native...solvent and the solute atoms are nearly the same size, do not form intermediate compounds and have the same |
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