... ). Rhodium, a homologous element of Co and Ir, can have various valences and low- or high-spin states. The second and third transition metal cations in the complexes are usually in a low-spin state. Table 1. Chemical compositions of the erlichmanite–laurite solid-solution specimens used for single...

...Elena V. Belogub; Sergey N. Britvin; Vladimir V. Shilovskikh; Leonid A. Pautov; Vasiliy A. Kotlyarov; Elisaveta V. Zaykova Abstract Zaykovite, ideally Rh 3 Se 4 , is a new mineral, the first natural rhodium selenide. It was discovered in the assemblages of platinum-group minerals from the Kazan...

... of Rh, minerals known to have Rh-dominant chemistries, the potential existence of both Rh 3+ and Rh 2+ , and the crystallochemical factors influencing accommodation of Rh in minerals. Rhodium is a frequent trace constituent in pentlandite, with concentrations ranging from ppm ( e.g ., <4–11.7 ppm...

..., Siberian Branch, Russian Academy of Sciences, Novosibirsk. Pure iridium (for Ir), rhodium (Rh), ruthenium (Ru), chalcopyrite (Cu and Fe), synthetic FeNiCo (Ni), and synthetic Sb 2 S 3 were used as standards. The following X-ray lines were used: Cu K α, Ni K α, Fe K α, Ir L α, Rh L α, Ru L α, Os L β, Pt L...

... such as As, Mo, Mg and Sr show positive correlation with Pd ( Fig. 4a -d). The concentrations of Au were also determined in all the water samples as they are also associated with PGE deposits ( Wyborn et al., 1994 ). The concentration of Pd is neither correlating with gold nor with other PGE elements. Rhodium...

... . Capobianco C.J. Drake M.J. ( 1990 ): Partitioning of ruthenium, rhodium, and palladium between spinel and silicate melt and implications for platinum group element fractionation trends . Geochim. Cosmochim. Acta , 54 , 869 – 874 . Cawthorn R.G. ( 2010 ): The platinum...

... minerals. * Ruthenium Rhodium Palladium 59 Co 40 Ar + → 99 Ru + 63 Cu 40 Ar + → 103 Rh + 65 Cu 40 Ar + → 105 Pd + 61 Ni 40 Ar + → 101 Ru + 206 Pb ++ → 103 Rh + 66 Zn 40 Ar + → 106 Pd + 62 Ni 40 Ar + → 102 Ru + 68 Zn 40 Ar + → 108 Pd + 106 Cd...

..., the content of Rh is close to the minimum detection level (MDL), but a rhodium peak is observed clearly in the core of the Ir-(As)-rich zone of Fig. 3 d . These results indicate that strong interrelationships exist between Ir, Rh, Ni and As (and As:S ratio). In contrast, Co covaries sympathetically with S...

... system (Pt–Fe–Rh–Ru–Cu) and the sequence of mineral formation. During serpentinization, ferroan platinum is replaced by tulameenite Pt 2 FeCu, which forms dendrites ( Fig. 8 f ). Under the action of S-enriched solutions, rhodium is bound in miassite, and copper forms Cu-containing sulfides—chalcopyrite...

...-glass-tube method in the Laboratory of Experimental Mineralogy of the Czech Geological Survey in Prague. Rhodium (99.99%), nickel (99.999%), and arsenic (99.999%) obtained from Sigma-Aldrich Co. were the starting materials for the synthesis. A carefully weighed sample was loaded into the high-purity...

... substitution study of the metallic rhodium oxide NaRh 2 O 4 . Chemistry of Materials , 17 , 359 – 365 . Yamaura K. Shirako Y. Kojitani H. Arai M. Young D.P. Akaogi M. Nakashima M. Katsumata T. Inaguma Y. Takayama-Muromachi E. ( 2009 ) Synthesis and magnetic...

... no correction for argide interferences were introduced. Data for three different Pd isotopes agree within error and an average of the three was accepted as Pd concentration. platinum palladium rhodium tungsten molybdenum solubility silicate melt silica content contamination experiment...

.... & Rudashevskii , N.S. ( 1985 ): Kashinite (Ir, Rh) 2 S 3 – a new sulfide of iridium and rhodium . Zap. Vses. Mineral. Obshchest . 114 , 617 – 622 (in Russ.). Bodnar , R.J. & Student , J.J. ( 2006 ): Melt inclusions in plutonic rocks: petrography and microthermometry . In Melt...

... metallic oxide,” providing the basis for the name Osmium , which is derived from osme , Greek for smell. That smell, of course, originates from the highly toxic osmium tetroxide. Synthetic crystals of platinum-rhodium alloy grown by high temperature vapor deposition (center crystal is ∼1 mm...

... be considered a neglected element compared with the other PGE. Rhodium has no suitable long-lived radioactive isotope for γ counting and it has only one isotope. © 2008 by the Mineralogical Society of America 2008 refractory metal meteoritic component noble-metal solubility Ir enrichment...