2003/08/01 by Caterina Rinaudo, C. Rinaudo, Daniela Gastaldi +3 · 4 citations
Earth and Planetary Sciences · Materials Science · #Clay minerals and soil interactions #Geological and Geochemical Analysis #Mineralogy and Gemology Studies
paper · doi:10.2113/gscanmin.41.4.883
crossref issued 2003/08/01 · crossref published 2003/08/01 · crossref published-print 2003/08/01 · openalex publication_date 2003/08/01 · crossref created 2007/07/19 · crossref deposited 2013/12/21 · openalex created_date 2025/10/10 · crossref indexed 2026/07/30 · openalex updated_date 2026/07/31
We analyzed samples of antigorite, lizardite and fibrous chrysotile, three representative minerals of the serpentine group, to determine their chemical and structural properties, and their FT-Raman spectra. The low-frequency region of the spectrum (1200– 200 cm –1 ), which corresponds to the lattice-vibration modes, was then analyzed, and the observed bands attributed, on the basis of our results. Raman spectroscopy thus proves useful in identifying the three mineral species, despite their strong similariti es in structure and chemical composition. The symmetric stretching modes of the Si–O b–Si linkages vibrate at different frequencies in chrysotile and antigorite, whereas chrysotile and lizardite can easily be identified by analyzing the vibrations of the OH–Mg–O H groups and the bands in the range 550–500 cm –1 .