Ruizite Hawthorne F C Tschermaks Mineralogische und Petrographische Mitteilungen 33 (1984) 135-146 The crystal structure of ruizite, a sorosilicate with an (Si4PHI13) cluster Locality: Wessels mine, Kalahari manganese fields, South Africa _database_code_amcsd 0019985 11.974 6.175 9.052 90 91.34 90 A2 atom x y z Biso Ca .2600 -.0031 .7052 .80 Mn -.0010 .25 .2489 .42 Si1 .1511 .0002 .0357 .40 Si2 .3953 .0155 .1043 .58 O1 .0925 -.0023 .8735 .68 O2 .2861 .0013 -.0075 .69 O3 .1224 .2191 .1296 .66 O4 .8657 .7857 .8652 .57 O5 .5 .0560 0 1.53 O6 .3859 .2065 .2232 .86 O7 .5946 .7744 .8185 1.18 O8 .0459 .0044 .3681 .60 O9 .2785 -.0132 .4435 1.51 H7 .51 .73 .22 1.0 H9A .34 .03 .40 1.0 H9B .23 .05 .39 1.0