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- Title
Raman spectra of gem-quality variscite and metavariscite.
- Authors
Fritsch, Emmanuel; Karampelas, Stefanos; Mevellec, Jean‐Yves
- Abstract
Raman spectra were obtained on a set of five gems presented as massive variscite, from the three major sources of this gem-quality material. In parallel, micro-FTIR in reflectance and chemical analysis were performed on the same samples, to further characterize them. Surprisingly, four out of five samples are found to be metavariscite, which has been documented in gem quality only once before. Results of micro-FTIR in reflectance confirmed this result. Copyright © 2017 John Wiley & Sons, Ltd.
- Subjects
RAMAN spectroscopy; VARISCITE; ANALYTICAL chemistry; GEMS &; precious stones; FOURIER transform infrared spectroscopy
- Publication
Journal of Raman Spectroscopy, 2017, Vol 48, Issue 11, p1554
- ISSN
0377-0486
- Publication type
Article
- DOI
10.1002/jrs.5117