Mizzonite Papike J J, Stephenson N C American Mineralogist 51 (1966) 1014-1027 The crystal structure of mizzonite, a calcium- and carbonate-rich scapolite _database_code_amcsd 0000148 12.169 12.169 7.569 90 90 90 I4/m atom x y z occ Biso Ca .1428 .2170 0 .67 1.13 Na .1428 .2170 0 .19 1.13 K .1428 .2170 0 .11 1.13 Mg .1428 .2170 0 .03 1.13 Si1 .3391 .4084 0 .71 -.08 Al1 .3391 .4084 0 .29 -.08 Si2 .3393 .0866 .2069 .48 .03 Al2 .3393 .0866 .2069 .52 .03 O1 .4581 .3480 0 .58 O2 .3120 .1280 0 .87 O3 .0510 .3489 .2081 .84 O4 .2332 .1354 .3263 .79 C 0 0 0 .83 1.80 O-C1 0 0 0 .83 1.80 O-C2 0 0 0 .83 1.80 O-C3 0 0 0 .83 1.80 S 0 0 0 .15 1.80 O-S1 0 0 0 .15 1.80 O-S2 0 0 0 .15 1.80 O-S3 0 0 0 .15 1.80 O-S4 0 0 0 .15 1.80 Cl 0 0 0 .02 1.80