 | | Journal (article/letter/editorial) | | uraninite at the graniterelated Buraco do Ouro gold mine, Cavalcante, Central Brazil J. MENEZ * AND N. F. BOTELHO...Universidade de BrasÃlia, BrasÃlia, DF 70910-900, Brazil [Received 16 February 2015; Accepted 21 March 2016;...have been reported in the northeastern part of Goiás State since the beginning of the 18th Century. The...rocks of the Ticunzal Formation. In the Buraco do Ouro gold mine, the mineralization is hosted in muscovite-quartz...mertieite II [Pd8(Sb,As)3], sperrylite (PtAs2), padmaite (PdBiSe), bohdanowiczite (AgBiSe2), clausthalite |  | Botelho, N. F., Moura, M. A., Peterson, R. C., Stanley, C. J., Silva, D. V. G. (2006) Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil. Mineralogical Magazine, 70 (1) 123-130 doi:10.1180/0026461067010318 | Journal (article/letter/editorial) | | platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiäs State, Brazil N. F. BOTELHO1,*, M...GeocieÃncias, Universidade de BrasõÂlia, DF, 70910-900 Brazil 2Department of Geological Sciences and Geological...discovered in the Buraco do Ouro gold mine, Cavalcante town, GoiaÂs State, Brazil. It occurs in a quartz-muscovite...guanajuatite, stibiopalladinite, sperrylite and padmaite. Gangue minerals are muscovite, quartz and rare...Kalungaite, PdAsSe, new mineral species, Brazil, Buraco do Ouro, gold deposit. Introduction KALUNGAITE |  | | Report (issue) | | Padmaite PdBiSe Crystal Data: Cubic. Point Group: 432. As isometric, irregular grains to 0.2 mm, and...02Ag0.03Se0.94S0.02. (2) Buraco do Ouro mine, Cavalcante, Goiás State, Central Brazil; electron microprobe...minor K-metasomatism) granite-related mylonite (Brazil). An uncommon component in placer deposits. Association:...kalungaite, sperrylite, uraninite, paraguanajuatite (Brazil). Distribution: From near the Padma River, southern...Russia [TL]. At the Buraco do Ouro gold mine, Cavalcante, Goiás State, Central Brazil. In the Jinchuan intrusion |  | | Report (issue) | | X-ray Powder Pattern: Buraco do Ouro gold mine, Cavalcante town, Goiás State, Brazil. 1.838 (100), 1.172...30.33 . 100.00 (1) Buraco do Ouro gold mine, Cavalcante town, Goiás State, Brazil; average of 8 electron... clausthalite, stibiopalladinite, sperrylite, padmaite, chalcopyrite, muscovite, quartz, tourmaline,...Distribution: From the Buraco do Ouro gold mine, Cavalcante town, Goiás State, central Brazil. Name: For the...community of descendants of African slaves living in Cavalcante and other towns near the locality that produced |  | | Journal (article/letter/editorial) | | Challacolloite was described from the Challacollo silver mine, south east of Iquique, Atacama desert, northern...discussed in the publication. At the Challacollo mine, it occurs intergrown with cotunnite (PbCl2) and...powder X-ray diffraction pattern for the Challacollo mine sample (Philips X’pert powder diffractometer, CuKα...platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goi’s State, Brazil. Mineral. Mag., 70, 123–130...mineral from the Buraco do Ouro gold mine, Cavalcante town, Goi’s State, central Brazil. The gold deposit |  | Prichard, Hazel M., Knight, Robert D., Fisher, Peter C., McDonald, Iain, Zhou, Mei-Fu, Wang, Christina Y. (2013) Distribution of platinum-group elements in magmatic and altered ores in the Jinchuan intrusion, China: an example of selenium remobilization by postmagmatic fluids. Mineralium Deposita, 48 (6) 767-786 doi:10.1007/s00126-013-0454-7 | Journal (article/letter/editorial) | | Irarsite (IrAsS) occurs mainly enclosed in BMS. Padmaite (PdBiSe), identified at the junctions of magnetite...replaces earlier non-Se-bearing PGM. We propose that padmaite formed under oxidizing conditions during late...concentrated mainly in pentlandite. In contrast, Pt and Au do not partition into BMS and instead form discrete...ores and the types of PGM that occur in Jinchuan. Padmaite (PdBiSe), sperrylite (PtAs2), and irarsite (IrAsS)...largest two grains are 14 and 8 μm in diameter. Padmaite is smaller, averaging 5.4 μm with the largest |  | | Journal (issue) | | mountains now, but there are many old mines and mine dumps to attract the mineral collector. The range...Rouse, 1974), the secondary minerals of the Travonia Mine in the Boulder Creek District near Maxville (French...and of the secondary minerals of the Scratch Awl Mine near Philipsburg (French, 2005). Some of us who...of the Chemical Bond.] Typical covalent compounds do not conduct electricity because all the electrons...MineralSpecies,photo by Jeffrey Scovil May 2007 Mine or Deposit Chauvai Mineral News 5---- Geologic |  | | Book (edition) | | Erlichmanite Sperrylite Aurostibite Geversite Insizwaite Padmaite Cobaltite Gersdorffite Ullmannite Hollingworthite...mineral, although in many cases, Environment these do not cover all possible genetic conditions. Reflection...bireflectance. Isotropic minerals, such as pyrite or galena, do not show bireflectance. Anisotropic minerals possess...Isotropic minerals, such as pyrite or galena, generally do not show anisotropy (although some exceptions are...(yellowish white), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum |  | | Book (edition) | | prepared as polished sections, which I was able to do in the lapidary of the Earth Science Department at...settings are specified, although in many cases, these do not cover all possible genetic conditions. Type...Group and both possess a strong bireflectance (as do the other members of the group). PPL, XPL The polarisers...reflections. Isotropic minerals, such as pyrite or galena, do not show bireflectance. Left: Radial tungstenite...preferred crystallographic orientations (axes) and do not find the time to fill interior gaps. In cases |  | | Report (issue) | | white areas). Sample is from the Buckskin National Mine, Humboldt County, Nevada. Photograph by Peter Vikre...............................................Q26 Mine Waste Characteristics.............................1989). The total U.S. supply was always higher than mine production during this period, with a high of 831...as indicated in fig Q3.) The difference between mine production and total supply was owing to the refineries’...of selenium-rich high-grade ores from the Horne Mine at Noranda, Quebec, Canada; by 1950, Canada’s production |  | | Book (edition) | | MINE andtheir LOCALITIES JAN H. BERNARD AND JAROSLAV HYRSL INERALS DESCRIBED SINCE 2004 MINERALS...dist., China Fluomatromicrolite, x 25111111, Naipa mine, Mozambique Daliranite, 5111111, Zarshouran Au-As...Domafov, Czech Rep. Juangodoyite, 60111111, Santa Rosa mine, Chile Back cover photo: Ho/fertile on hematite...piment pseudomo,phs after realga,; 75 mm, Palomo mine, Pen, Page 3: Stepite on arsenic, 45 111111,Jachymov...2(4) - 4.0(6) - 2.58(10) - 2.04(5). At the Kiura mine, Saiki City, Oita pref., Japan. IMA 2012-101. Adolfpateraite |  | | Book (edition) | | of The Fleischer s Glossary of Mineral Species, I do so with somc sadness. On September 18, 2007, my Teacher...Thomas Armbrusler (Switzerland). Daniel Atcncio (Brazil). Malcolm Back (Canada), Henry L. Barwood (USA)...Abernathyitc, K[(UO 2 )(AsO,)](HP) 3, tet., Fumerole No. 2 mine, Temple Mountain. on the southeast flank of the...104(3). 326-328 â–¡ Achavnlitc, FcSe, hex .. Cacheuta Mine. Ccrro de Cacheuta. Sierra de Cacheuta. Mcndoza...AgardJte-(Ce), CeCu.(AsO4)i(OH).-3H1O, hex., Clara mine, central Black Forest, Gennany,A1ifSS(2004),17-23 |  | | Report (issue) | | rare-earth elements, and antimony in China; niobium in Brazil; and platinum-group elements in South Africa and....B3 Graph showing dates associated with all the mine sites on the U.S. Environmental Protection Agency’s...production, U.S. apparent consumption, and U.S. mine production of antimony from 1900 to 2012............................F2 Graph showing world cobalt mine and refinery production and apparent consumption.....................F2 Graph showing world cobalt mine production from 1950 to 2011................... |
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