Citation: Hejny, C.; Miletich, R.; Jasser, A.; Schouwink, P.; Crichton, W.; Kahlenberg, V. (2012). Second-order P6c2-P31c transition and structural crystallography of the cyclosilicate benitoite, BaTiSi3O9, at high pressure Note: P = 4.75 GPa. American Mineralogist, 97, pp. 1749-1763.