Email this article Synthetic chalcogenides of gold in the Au-Te-Se-S system and their natural analogs
- Authors: Palyanova G.A.1,2, Tolstykh N.D.1,2, Zinina V.Y.1,2, Kokh K.A.1,2, Seryotkin Y.V.1,2, Bortnikov N.S.3
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Affiliations:
- Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
- Novosibirsk State University
- Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
- Issue: Vol 487, No 4 (2019)
- Pages: 432-437
- Section: Geochemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/15838
- DOI: https://doi.org/10.31857/S0869-56524874432-437
- ID: 15838
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Abstract
First in the Au-Te-Se-S system (where Te ≥ Se + S) quadruple chalcogenides were obtained by dry synthesis: AuX (AuTe0,7Se0,2S0,1), Au3X10 (Au3Te6Se3S, Au3Te6Se2,5S1,5) и AuX2 (AuTe1,8Se0,2, AuTe1,8Se0,1S0,1). According to the results of X-ray phase analysis, the synthetic phases of the composition AuTe1,8(Se,S)0,2 correspond to the calaverite (AuTe2). The unidentified peaks on the diffractograms belong to the new gold chalcogenides AuTe0,7Se0,2S0,1 and Au3Te6(Se,S)4. Obviously, they are synthetic analogues of compounds previously unknown in nature, found on the Gatching occurence of the Maleteuyamsky ore field (Central Kamchatka volcanic belt). The compositions of natural phases cover the intervals: 1) Au0,99-1,00Te0,70-0,71Se0,25-0,27S0,03-0,06; 2) Au2,91-3,08Te5,85-6,06Se1,57-3,66S2,63-0,44. Raman spectra of synthetic and natural gold chalcogenides with a similar composition have identical character.
About the authors
G. A. Palyanova
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Author for correspondence.
Email: palyan@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
N. D. Tolstykh
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: palyan@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
V. Yu. Zinina
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: palyan@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
K. A. Kokh
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: palyan@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
Yu. V. Seryotkin
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: palyan@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
N. S. Bortnikov
Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences
Email: palyan@igm.nsc.ru
Academician of the Russian Academy of Sciences
Russian Federation, 35, Staromonetny, Moscow, 119017References
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