The paper considers the mineralogical and spectroscopic features of sperrylite, which is a main Pt source of low-sulfde Pt-bearing Cu-Ni occurrences of the devonian Pay-Khoy sills. Platinum arsenides occur in silicates/oxides, sulfdes and at contacts between sulfdes and silicates/oxides. Raman spectroscopic studies shown that Raman spectrum of anhedral sperrylite inclusions and individual crystals exhibit two (210-214 and 274-277 cm–1) and three (208-214, 219-223 and 272-277 cm–1) intense bands, respectively. According to paragenetic assemblage, sperrylite was formed at temperatures of <500 °C.

Figures 4. Table 1. References 14.

Key words: Pt arsenides, mineralogy, Raman spectroscopy, Cu-Ni ores, Pay-Khoy.

R.I. Shaybekov, Institute of Geology of Komi SC UB RAS, ul. Pervomayskaya 54, Syktyvkar, 167000 Russia; shaybekov@geo.komisc.ru

S.I. Isaenko, Institute of Geology of Komi SC UB RAS, ul. Pervomayskaya 54, Syktyvkar, 167000 Russia

E.M. Tropnikov, Institute of Geology of Komi SC UB RAS, ul. Pervomayskaya 54, Syktyvkar, 167000 Russia

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