Ruizite
Moore P B, Shen J, Araki T
American Mineralogist 70 (1985) 171-181
Crystal chemistry of the (M2)3+ phi2 sheet: Structural principles and crystal
structures of ruizite, macfallite and orientite
Locality: Nchwaning mine, Kalahari manganese field, South Africa
_database_code_amcsd 0000967
9.064 6.171 11.976 90 91.4 90 C2/m
atom      x     y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mn      .25   .25     0      .0084  .0001  .0075  .0008  .0025  .0000
Ca    .2054    .5 .2599      .0157  .0060  .0109      0  .0028      0
Si1   .0355     0 .1513      .0075  .0019  .0081      0  .0010      0
O1    .1328 .2165 .1291      .0139  .0026  .0122 -.0027  .0051 -.0025
O2    .3748    .5 .0921      .0141  .0034  .0101      0  .0002      0
O3   -.0063     0 .2857      .0173  .0069  .0062      0  .0037      0
Si2   .1042     0 .3951      .0108  .0123  .0081      0  .0008      0
O4    .2056  .215 .3954  .5  .0673  .0173  .0339 -.0263 -.0311  .0154
OH5   .2056  .215 .3954  .5  .0673  .0173  .0339 -.0263 -.0311  .0154
O6        0     0    .5      .0194  .1197  .0172      0  .0078      0
OH7   .3674     0 .0459      .0083  .0040  .0121      0  .0014      0
OH8   .4437     0 .2781      .0170  .0220  .0332      0  .0057      0