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Main Title: Spectroscopic and Crystal-Chemical Features of Sodalite-Group Minerals from Gem Lazurite Deposits
Author(s): Chukanov, Nikita V.
Sapozhnikov, Anatoly N.
Shendrik, Roman Yu.
Vigasina, Marina F.
Steudel, Ralf
Type: Article
Language Code: en
Abstract: 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.
Issue Date: 23-Nov-2020
Date Available: 29-Dec-2020
DDC Class: 546 Anorganische Chemie
Subject(s): mineral
sodalite group
extra-framework species
polysulfide groups
infrared spectroscopy
Raman spectroscopy
UV-Visible spectroscopy
X-ray diffraction
Journal Title: Minerals
Publisher: MDPI
Publisher Place: Basel
Volume: 10
Issue: 11
Article Number: 1042
Publisher DOI: 10.3390/min10111042
EISSN: 2075-163X
Appears in Collections:FG Anorganische Chemie - Festkörper- und Materialchemie » Publications

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