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Article

Spectroscopic and Crystal-Chemical Features of Sodalite-Group Minerals from Gem Lazurite Deposits

1
Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, 142432 Moscow, Russia
2
Faculty of Geology, Moscow State University, Vorobievy Gory, 119991 Moscow, Russia
3
Vinogradov Institute of Geochemistry, Siberian Branch of Russian Academy of Sciences, 1a Favorskii St., 664033 Irkutsk, Russia
4
Institute of Chemistry, Technical University Berlin, D-10623 Berlin, Germany
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(11), 1042; https://doi.org/10.3390/min10111042
Received: 5 November 2020 / Revised: 19 November 2020 / Accepted: 20 November 2020 / Published: 23 November 2020
(This article belongs to the Special Issue Vibrational (Infrared and Raman) Spectroscopy of Minerals)
Five samples of differently colored sodalite-group minerals from gem lazurite deposits were studied by means of electron microprobe and wet chemical analyses, infrared, Raman, electron spin resonance (ESR) and UV-Visible spectroscopy, and X-ray diffraction. Various extra-framework components (SO42−, S2− and Cl anions, S3•−, S2•− and SO3•− radical anions, H2O, CO2, COS, cis- as well as trans- or gauche-S4 neutral molecules have been identified. It is shown that S3•− and S4 are the main blue and purple chromophores, respectively, whereas the S2•− yellow chromophore and SO3•− blue chromophore play a subordinate role. X-ray diffraction patterns of all samples of sodalite-group minerals from lazurite deposits studied in this work contain superstructure reflections which indicate different kinds of incommensurate modulation of the structures. View Full-Text
Keywords: mineral; sodalite group; extra-framework species; polysulfide groups; infrared spectroscopy; Raman spectroscopy; UV-Visible spectroscopy; ESR; X-ray diffraction mineral; sodalite group; extra-framework species; polysulfide groups; infrared spectroscopy; Raman spectroscopy; UV-Visible spectroscopy; ESR; X-ray diffraction
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MDPI and ACS Style

Chukanov, N.V.; Sapozhnikov, A.N.; Shendrik, R.Y.; Vigasina, M.F.; Steudel, R. Spectroscopic and Crystal-Chemical Features of Sodalite-Group Minerals from Gem Lazurite Deposits. Minerals 2020, 10, 1042. https://doi.org/10.3390/min10111042

AMA Style

Chukanov NV, Sapozhnikov AN, Shendrik RY, Vigasina MF, Steudel R. Spectroscopic and Crystal-Chemical Features of Sodalite-Group Minerals from Gem Lazurite Deposits. Minerals. 2020; 10(11):1042. https://doi.org/10.3390/min10111042

Chicago/Turabian Style

Chukanov, Nikita V., Anatoly N. Sapozhnikov, Roman Y. Shendrik, Marina F. Vigasina, and Ralf Steudel. 2020. "Spectroscopic and Crystal-Chemical Features of Sodalite-Group Minerals from Gem Lazurite Deposits" Minerals 10, no. 11: 1042. https://doi.org/10.3390/min10111042

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