Ingodite Bayliss P American Mineralogist 76 (1991) 257-265 Crystal chemistry and crystallography of some minerals in the tetradymite group _database_code_amcsd 0001347 4.2477 4.2477 23.075 90 90 120 P-3m1 atom x y z occ Bi 0 0 .124 Bi 1/3 2/3 .291 Bi 2/3 1/3 .459 S 0 0 .362 .56 Te 0 0 .362 .44 S 1/3 2/3 .056 .56 Te 1/3 2/3 .056 .44 S 2/3 1/3 .211 .56 Te 2/3 1/3 .211 .44