Titanite Troitzsch U, Ellis D J, Thompson J, Fitz-Gerald J European Journal of Mineralogy 11 (1999) 955-965 Crystal structural changes in titanite along the join TiO-AlF Sample: AlF100 _database_code_amcsd 0006806 6.9157 8.5076 6.4391 90 114.683 90 A2/a atom x y z Biso Ca .25 .1642 0 1.34 Aloct .5 0 .5 1.40 Si .75 .1867 0 1.03 F1 .75 .0694 .5 .56 O2 .9048 .0662 .1877 .56 O3 .3898 .2020 .4054 .56