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Raman study of barite and celestine at various temperatures

Zhou, Li; Mernagh, Terrence; Mo, Bing; Wang, Li; Zhang, Shuai; Wang, Chunyao

Description

The Raman spectra of barite and celestine were recorded from 25 to 600 ◦C at ambient pressure and both minerals were stable over the entire temperature range. Most of the Raman bands of barite decreased in wavenumber with increasing temperature with the exception of the ν2 modes and the ν4 band at 616 cm−1 , which did not exhibit a significant temperature dependence. These vibrations may be constrained by the lower thermal expansion along the a-axis and b-axis of barite. Similar to...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
URI: http://hdl.handle.net/1885/217360
Source: Minerals
DOI: 10.3390/min10030260
Access Rights: Open Access

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