 | Rudashevsky, N. S., Garuti, G., Andersen, J. C. Ø., Kretser, Yu. L., Rudashevsky, V. N., Zaccarini, F. (2002) Separation of accessory minerals from rocks and ores by hydroseparation (HS) technology: method and application to CHR-2 chromitite, Niquelândia intrusion, Brazil. Applied Earth Science, 111 (1) 87-94 doi:10.1179/aes.2002.111.1.87 | Journal (article/letter/editorial) | | and application to CHR-2 chromitite, Niquelândia intrusion, Brazil N. S. Rudashevsky, G. Garuti, J. C....platinum-bearing CHR2 chromitite of the Niquelândia layered intrusion, central Goiás, Brazil. The study of heavy accessory...CHR-2 chromitite band of the Niquelândia layered intrusion, central Goiás, Brazil. The platinum-group elePaper...preserve their original crystal shapes. For the Niquelândia chromitite (described later) polished B87 (a)...16000 7000 0.044 0.021 0.014 0.014 498 Niquelândia, Brazil Chromitite 400 4790 1 50% (IFP+TFP) |  | | Journal (article/letter/editorial) | | consisting of native platinum, Fe-rich platinum and isoferroplatinum. The following features of the mineral assemblage...of alloys: early osmium– iridium, and later isoferroplatinum–ruthenium, which both are associated with...ophiolitic rocks, iridium–osmium paragenesis, isoferroplatinum–ruthenium paragenesis, Kamchatskiy Mys Peninsula...likely to represent all known mineral species: isoferroplatinum, native and iron-bearing platinum (Cabri &...43 wt.%, respectively, Table 3). 1061 of isoferroplatinum–iridium decomposition (Figs. 9C, D), or inclusions |  | Garuti, Giorgio, Zaccarini, Federica, Proenza, Joaquin, Thalhammer, Oskar, Angeli, Nelson (2012) Platinum-Group Minerals in Chromitites of the Niquelândia Layered Intrusion (Central Goias, Brazil): Their Magmatic Origin and Low-Temperature Reworking during Serpentinization and Lateritic Weathering. Minerals, 2 (4) 365-384 doi:10.3390/min2040365 | Journal (article/letter/editorial) | | Minerals in Chromitites of the Niquelândia Layered Intrusion (Central Goias, Brazil): Their Magmatic Origin...Universidade Estadual Paulista, Rio Claro 13500, SP, Brazil; E-Mail: nangeli@rc.unesp.br * Author to whom...with the chromitite and dunite layers in the Niquelândia igneous complex. Two genetically distinct populations...Chromitite; PGM; laterite; weathering; Niquelândia 1. Introduction The Niquelândia igneous complex, exposed in...laterite cover with silicate-Ni deposits [5]. The Niquelândia complex is similar to many other layered intrusions |  | Zaccarini, F., Bindi, L., Garuti, G., Proenza, J. A. (2014) RUTHENIUM AND MAGNETITE INTERGROWTHS FROM THE LOMA PEGUERA CHROMITITE, DOMINICAN REPUBLIC, AND RELEVANCE TO THE DEBATE OVER THE EXISTENCE OF PLATINUM-GROUP ELEMENT OXIDES AND HYDROXIDES. The Canadian Mineralogist, 52 (4) 617-624 doi:10.3749/canmin.1400030 | Journal (article/letter/editorial) | | composed of a 10:90 mixture of ferrihydrite and isoferroplatinum. To help resolve the concerns related to these...grains were a mixture of ferrihydrite and isoferroplatinum. ACKNOWLEDGMENTS The research was supported...natural Pd–O compound from Gongo Soco, Minas Gerais, Brazil. Canadian Mineralogist 42, 689–694. CABRI, L.J...Minerals in Chromitites of the Niquelândia Layered Intrusion (Central Goias, Brazil): Their Magmatic Origin...compounds of platinum and palladium in Minas Gerais, Brazil. Canadian Mineralogist 36, 887–893. KAPSIOTIS, |  | | Journal (article/letter/editorial) | | ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil of the host gold (Fig. 1). Where associated with... Germany R. Kwitko Companhia Vale do Rio Doce, Brazil R. D. Jones Formerly Reynolds Metals, U.S.A.; now...Soco was the first major underground gold mine in Brazil and produced 12.9 t of gold between 1826 and 1856... michenerite and kotulskite), and alloys (isoferroplatinum and osmiridium). These tiny mineral grains...Publ. 23 B213 Au–PGE deposits: examples from Brazil and Australia Downloaded by [University of California |  | | Book | | Ruthenium, Rutheniridosmine (OsIrRu), Platinum, Isoferroplatinum Pt3 Fe, (Pt2.5( FeNiCu)1.5 , Tetraferroplatinum...Hg-based PGM (Figure 3B). The Pt–Fe alloys isoferroplatinum and tetraferroplatinum, along with iridium...grain of isoferroplatinum, cuprorhodsite, cuproiridsite and erlichmanite. (D) Isoferroplatinum in contact...Bi-phase grain of isoferroplatinum and cuprorhodsite. (F) PGM composed of isoferroplatinum, osmium, and erlichmanite...bowieite, IrNiS = unnamed Ir and Ni sulfide, Isf = isoferroplatinum, Osm = osmium, Erl = erlichmanite, Cpx = clinopyroxene |  | | Book | | Michenerite 1.3.1.8 Moncheite 1.3.1.9 Isoferroplatinum 1.3.1.10 Skaergaardite 9 9 10 10 10 10...significant in Canada, United States, Australia, Africa, Brazil, New Caledonia, Philippines, Indonesia, and the...Merenskyite, Moncheite [(Pt,Pd)(Te,Bi)2], and Isoferroplatinum [(Pt,Pd)3 (Fe,Cu)]. 1.3.1.1 Sperrylite Sperrylite...Northern Region, Russia. 1.3.1.9 Isoferroplatinum Isoferroplatinum is a gray to dark-gray metallic mineral...trans-Siberian Russia, and a few others in Namibia and Brazil, The supergiant Sudbury nickel deposit in Canada |  | | Report (issue) | | Inaglyite Insizwaite Irarsite Iridarsenite Iridium Isoferroplatinum Isomertieite Kashinite Keithconnite Kharaelakhite... Cuprorhodsite Konderite Fe Chengdeite Isoferroplatinum Ferrorhodsite Kharaelakhite-? Hexaferrum-...Inaglyite Insizwaite Irarsite Iridarsenite Iridium Isoferroplatinum Isomertieite Kashinite Keithconnite Kharaelakhite...19°39S, Long. 43°14W), Itabira, Minas Gerais, Brazil. Also found in the Stillwater Complex, Montana...19°39S, Long. 43°14W), Itabira, Minas Gerais, Brazil. Also occurs in the Main Sulphide Zone, Great Dyke |  | | Report (issue) | | Ruthenium Compounds with transition metals Isoferroplatinum Pt3Fe Potarite PdHg Tulameenite PtFe0...intrusions. A, Photograph of silvery-gray nugget of isoferroplatinum from the Kondyor Massif, Russia. PGEnugget...long, consists of two intergrown crystals of isoferroplatinum; each crystal forms a cube with smooth crystal...TreasureMountainMining.com). B, Sketch of the isoferroplatinum nugget illustrating the cube-shaped crystals...Nelson, 2005, Platinum group minerals in eastern Brazil: Platinum Metals Review, v. 49, no. 1, p 41–53 |  | | Conference Proceedings (Volume) | | lateritized chromitite of the Niquelândia layered intrusion (Central Goias, Brazil) .........................Institute of Geosciences, University of Campinas, Brazil Federica Zaccarini Department of Applied Geological...tailing materials (Amang) in Malaysia, Indonesia and Brazil. 2.6 Heavy rare earth mineralization submarine...000 million (50 % from Canada alone, 10 % from Brazil) (Statistics Norway, 2013a): these imports, along...Environmental Materials, 67. Buzios, Rio de janeiro, Brazil. Goodale N, Bailey D G, Jones G T, Prescott C, |  | | Report (issue) | | rare-earth elements, and antimony in China; niobium in Brazil; and platinum-group elements in South Africa and...chart showing niobium resources and reserves in Brazil, Canada, and the United States...................industrialization in large developing countries, such as Brazil, China, and India. In addition, the development...cobalt (Democratic Republic of the Congo), niobium (Brazil), and platinum (South Africa), are also considered...alkalineultramafic Barreiro complex in Minas Gerais, Brazil, is capped by a 150- to 230-meter-thick regolith |
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