... Kiseeva 12 6 2019 15 11 2019 Copyright © 2020 by the Mineralogical Society of America 2020 Mineralogical Society of America Platinum-group minerals antimonides bismuthinides experimental study sulfide system phase relations Antimony (Sb) and bismuth (Bi...

... of Applied Chemistry at El Turco Street in Madrid and most probably corresponds to the material used by François Chabaneau for his experiments to purify platinum metal in the late 18th century. The sample is a heavy-mineral concentrate consisting of Pt–Fe alloys and gold nuggets associated with ilmenite...

... of platinum group element mineralization and for the improvement of Pt ore extraction and processing technologies. Here we report results of an investigation of local atomic structure of synthetic Pt-bearing pyrites by means of X-ray absorption spectroscopy (XAS). Synthesis experiments, performed at 580...

...Eugene G. Sidorov; Anton V. Kutyrev; Elena S. Zhitova; Valery M. Chubarov; Dmitry A. Khanin Abstract The Itchayvayamsky Ural-Alaskan-type massif is located in the northernmost part of the Koryak-Kamchatka Platinum Belt (Russia) and is surrounded by two rivers (Kamenistaya and Itchayvayam) that both...

... reliable quantitative estimates of concentrations, environmental pathways, and fate in the ocean were still lacking. This group includes the platinum-group elements (PGEs: Ru, Rh, Pd, Os, Ir, and Pt) and most of the rare earth elements (REEs: lanthanides from La to Lu). These elements are contained...

... platinum group element (PGE) mineralization at different stratigraphic levels of the intrusion that have been suggested to represent reef-style mineralization. The Sopcha reef occurs in the ultramafic lower portion of the complex and constitutes an up to 6-m-thick succession of layered, mineralized dunite...

...José M. González-Jiménez; Artur Deditius; Fernando Gervilla; Martin Reich; Alexandra Suvorova; Malcolm P. Roberts; Josep Roqué; Joaquín A. Proenza Abstract We report new results of a combined focused ion beam and high-resolution transmission electron microscopy (FIB/HRTEM) investigation of platinum...

...Matthew J. G. McCreesh; Marina A. Yudovskaya; Judith A. Kinnaird; Christian Reinke ABSTRACT This study provides the first detailed mineralogical data on platinum-group element (PGE) mineralization of the Waterberg Project, in a previously unknown segment of the Bushveld Complex located...

...Thomas Oberthür; Frank Melcher; Tobias Fusswinkel; Alfons M. van den Kerkhof; Graciela M. Sosa ABSTRACT The Waterberg platinum deposit is an extraordinary example of a vein-type hydrothermal quartz-hematite-PGE (platinum-group element) mineralization. This study concentrates on the geochemical...

...John F. W. Bowles; Saioa Suárez; Hazel M. Prichard; Peter C. Fisher ABSTRACT Heavy mineral concentrates from rivers and river terraces near York, Freetown Peninsula, Sierra Leone have been examined for their platinum-group mineral (PGM) content. The alluvial PGM are 0.1 to 1.5 mm in size...

...L. Oppermann; M. Junge; S. Schuth; F. Holtz; U. Schwarz-Schampera; L. Sauheitl Abstract Weathered chromitite layers from the Lower Group (LG) and Middle Group (MG) of the Bushveld Complex in South Africa are mined for chromite but have the potential to be processed for platinum-group elements (PGE...

... and Fe 2 O 3 concentrations vary (in wt %) from 34.8 to 40.67 and 5.38 to 7.05, respectively. TiO 2 content ranges from 0.04 to 0.71 wt%. The silicates interstitial to chromite consist of enstatite, magnesiohornblende and clinochlore. One sample contains 855 ppb of total platinum-group elements (PGE...

...Louis J. Cabri; Michelle Kelvin; Zhaoping Yang; Simon E. Jackson; Okan Altun The Kevitsa mine, located in northern Finland, contains disseminated Ni–Cu–Fe sulphides and platinum-group minerals. Earlier studies had reported trace concentrations of platinum-group elements in several minerals using...

...Jan Pašava; Lukáš Ackerman; Patricie Halodová; Ondřej Pour; Jana Ďurišová; Federica Zaccarini; Thomas Aiglsperger; Anna Vymazalová Lower Cambrian Mo–Ni sulphidic black shales from the Huangjiawan mine (Guizhou Province, south China) have anomalous platinum-group element (PGE) concentrations (up...

...Thomas OberthÜr; Frank Melcher; Thorolf W. Weiser Abstract The present work provides a comprehensive description of the assemblage of detrital platinum-group minerals (PGM) and gold found in the Llorente river and its tributaries draining the area west of the town of Llorente in southeastern Samar...

...Alexander Kawohl; Hartwig E. Frimmel Abstract Petrographic and mineralogical studies of samples of the Normal (or undisturbed) Merensky Reef from Frank Shaft No.1 at Rustenburg Platinum Mine revealed the presence of a Pt-Fe-alloy, probably isoferroplatinum (58 vol.% of total precious metal minerals...

... Association of Canada 2016 cabriite taimyrite tatyanaite “stannopalladinite” Pd-Pt-Cu stannides intermetallic compounds platinum-group elements tin copper solid solutions platinum-group minerals Intermetallic compounds of Pd, Pt, Cu, and Sn, i.e ., Pd-Pt-Cu stannides, are very rare...

...Federica Zaccarini; A. Krishnakanta Singh; Giorgio Garuti Abstract This study reports the first documented occurrence of platinum group minerals (PGM) and silicate inclusions in the podiform chromitites of the Naga-Manipur ophiolite complex, Indo-Myanmar orogenic belt, northeastern India...

... compounds of platinum have been regarded as high-temperature minerals that formed in mafic and ultramafic magmas. Such minerals do, however, also occur in the relatively low-temperature milieu of hematite-bearing quartz veins, as indicated in the 1920s ( Wagner 1926 , 1929 ), and further emphasized...