Leonite
Hertweck B, Giester G, Libowitzky E
American Mineralogist 86 (2001) 1282-1292
The crystal structures of the low-temperature phases of leonite-type compounds,
K2Me(SO4)2.4H2O (Me=Mg,Mn,Fe)
Sample: K2Mg(SO4)2.4H2O, T = 170 K
_database_code_amcsd 0002728
11.780 9.486 19.730 90 95.23 90 *I2/a
.25 .25 .5
atom       x       y        z  Uiso
K1   -.16787  .26888  -.12018 .0132
K2    .16701  .25821   .12922 .0124
Mg1        0 -.00112        0 .0080
Mg2        0      .5      .25 .0073
S1    .20754  .49638  -.02192 .0074
S2    .21271  .00706  -.24073 .0072
O1A   -.1581   .3747   .05556 .0134
O1B    .1600  -.3706  -.05912 .0132
O2A    .1504  -.0923  -.20014 .0136
O2B    .1784   .1527  -.22726 .0150
O3     .1688  -.0009   .02694 .0186
O4     .1812   .4912   .04870 .0173
O5     .1641   .4918   .21902 .0113
O6     .1902   .0228   .18618 .0149
Ow1A   .0376   .3429  -.17806 .0113
Ow1B   .0430  -.3403  -.18099 .0112
Ow2A       0   .2185        0 .0150
Ow2B       0  -.2196        0 .0187
Ow3    .0142  -.0017  -.10481 .0171
H1A     .077    .280    -.195  .020
H2A     .078    .360    -.139  .037
H1B     .074   -.272    -.195  .021
H2B     .083   -.356    -.142  .033
H3A     .049    .271    -.015  .036
H3B     .050   -.274    -.015  .044
H4      .065   -.015    -.129  .035
H5     -.041    .007    -.132  .026