 | | Journal (article/letter/editorial) | | uraninite at the graniterelated Buraco do Ouro gold mine, Cavalcante, Central Brazil J. MENEZ * AND N. F. BOTELHO...Universidade de Brasília, Brasília, 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...magnetite concentrations and rare chalcopyrite and pyrite are also associated with both mineralized and barren |  | | 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 |  | Flégr, Tomáš, Sejkora, Jiří, Škácha, Pavel, Dolníček, Zdeněk (2018) New occurrence of kruťaite and petříčekite at the former uranium mine Slavkovice, western Moravia, Czech Republic. Bulletin Mineralogie Petrologie, 26 (2) 250-258 | Journal (article/letter/editorial) | | of kruťaite and petříčekite at the former uranium mine Slavkovice, western Moravia, Czech Republic Tomáš...of kruťaite and petříčekite at the former uranium mine Slavkovice, western Moravia, Czech Republic. Bull...museum samples of vein fillings from the uranium mine Slavkovice, western Moravia (Czech Republic). Kruťaite...was originally described from the former uranium mine Petrovice, western Moravia (Johan et al. 1972)....localities e. g. El Dragón mine, Bolivia (Grundman et al. 1990), Cacheuta mine, Argentina (Paar et al. 1996) |  | | Journal (issue) | | noteworthy accessory minerals save muscovite and minor pyrite. Of these prospects, Bayley (1904) states that...some of the Garland County mines. I also planned to do some Magnet Cove collecting but the rain twice wiped...include K-feldspar, ·'limonite" pseudomorphs after pyrite, and small rutile crystals. About 200 quartz crystals...from which mine they came. Most will have forgotten but often will give you a guess I usually do not press...erroneous detailed location data. The Sweet Surrender mine near Story is located near the northwest end of |  | 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) | | concentrated mainly in pentlandite. In contrast, Pt and Au do not partition into BMS and instead form discrete...altered BMS with magnetite veining and late veins of pyrite (py), j reflected light view of JC-40 showing extensive...of massive BMS with late cross cutting veins of pyrite 76.5 8.0 62.0 23.5 209.5 3 6 7 44 31.5 5...magnetite in JC39 JC-40; Fig. 2f and j). Late pyrite-filled veins are also a feature of the more severely...Table 5). The main hosts are silicates, magnetite, pyrite, chrome-spinel, and BMS (taken as one category |  | | 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...Primary mineralization noted consisted of galena, pyrite, sphalerite and tetrahedrite. These occur as remnants...of the Chemical Bond.] Typical covalent compounds do not conduct electricity because all the electrons |  | | Report (issue) | | white areas). Sample is from the Buckskin National Mine, Humboldt County, Nevada. Photograph by Peter Vikre...............................................Q26 Mine Waste Characteristics.............................Abstract Selenium (Se) was discovered in 1817 in pyrite from copper mines in Sweden. It is a trace element...in the sludge left over after the processing of pyrite from the copper mines at Falun, Sweden. The sludge...1989). The total U.S. supply was always higher than mine production during this period, with a high of 831 |  | | 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 |  | | Book (edition) | | Calaverite II/D.16-40 378 Villamaninite II/D.17-20 380 Pyrite II/D.17-30 382 Cattierite II/D.17-40 384 VIII ...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...anisotropy. Isotropic minerals, such as pyrite or galena, generally do not show anisotropy (although some...Descriptions Irregular patches of gold (yellow) in pyrite (light cream); West Driefontein, Johannesburg, |  | | 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...colours of bornite (brown), chalcocite (blue), and pyrite (creme). 2 Reflectance Reflectance relates to...reflections. Isotropic minerals, such as pyrite or galena, do not show bireflectance. Left: Radial tungstenite |  | | 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 □ 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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