Vesuvianite Ohkawa M, Yoshiasa A, Takeno S American Mineralogist 77 (1992) 945-953 Crystal chemistry of vesuvianite: Site preferences of square-pyramidal coordinated sites sample #2 from Sanpo _database_code_amcsd 0001538 15.606 15.606 11.825 90 90 90 *P4/nnc .25 .25 .25 atom x y z occ Ca1 -.25 .25 .25 Ca2 -.1890 .0437 .3795 Ca3 -.0986 -.1785 .8855 CaC .75 .75 .1355 .5 FeB .75 .75 .0564 .5 Al -.1118 .1205 .1270 .81 Fe -.1118 .1205 .1270 .19 AlA 0 0 0 Si1 .75 .25 0 Si2 -.1808 .0402 .8715 Si3 -.0830 -.1507 .3643 O1 -.2207 .1727 .0854 O2 -.1169 .1602 .2801 O3 -.0487 .2224 .0755 O4 -.0614 .1060 .4699 O5 -.1705 .0145 .1794 O6 -.1180 -.2712 .0598 O7 .0561 .1745 .3221 O8 -.0609 -.0904 .0666 O9 -.1443 -.1443 .25 F10 .75 .75 .8515 OH11 -.0040 .0618 .1357