Jeremy and Keith recently published work with the Otago Department of Geology (Matthew Tarling and Steven Smith) entitled “Crystallographic orientation mapping of lizardite serpentinite by Raman spectroscopy” in the European Journal of Mineralogy (2022) 34, 285 – 300 https://doi.org/10.5194/ejm-34-285-2022
This shows the importance of crystal orientation for observed Raman spectra and can be used to explain some phenomena within the literature.