Benitoite Hejny C, Miletich R, Jasser A, Schouwink P, Crichton W, Kahlenberg V American Mineralogist 97 (2012) 1749-1763 Second-order P6c2-P31c transition and structural crystallography of the cyclosilicate benitoite, BaTiSi3O9, at high pressure Note: P = 0.0001 GPa Locality: San Benito, California, USA _database_code_amcsd 0019506 6.6430 6.6430 9.7660 90 90 120 P-6c2 atom x y z Uiso Ba 2/3 1/3 0 .0074 Ti 1/3 2/3 0 .0032 Si .0705 .7817 .25 .0014 O1 .809 .745 .25 .0024 O2 .0862 .6578 .3877 .0039