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In situ high-temperature Raman and FTIR spectroscopy of the phase transformation of lizardite

Trittschack, Roy ; Grobéty, Bernard ; Koch-Müller, Monika

In: American Mineralogist, 2012, vol. 97, no. 11-12, p. 1965-1976

A temperature-dependent in situ micro-FTIR and micro-Raman spectroscopic investigation was performed on powdered (FTIR, Raman) and single-crystal (Raman) lizardite-1T samples between room temperature and 819 °C. Between room temperature and 665 °C, the OH stretching bands shift to lower wavenumbers, demonstrating a weak expansion of the O3-H3…O2 interlayer distance. Band...