Girvasite
Sokolova E V, Yegorov-Tismenko Y K
Doklady Akademii Nauk SSSR 331 (1990) 1372-1376
Crystal structure of girvasite
_database_code_amcsd 0012487
6.522 12.25 21.56 90 89.48 90 P2_1/c
atom      x     y     z Biso
Na     .147 .2076 .1051  1.8
Ca1   .4348 .0196 .2503   .6
Ca2   .6793 .2492 .3488  1.0
Mg1    .947 .1578 .7179   .3
Mg2    .620 .0732 .1115   .9
Mg3    .249 .0281 .6319   .5
P1     .439 .2338 .7197   .8
P2     .905 .0717 .2313   .9
P3     .752 .0350 .5944  1.0
C      .704  .039  .910   .8
O1     .271  .152 .6995  1.0
O2     .569  .006 .6373   .5
O3     .914  .002 .7559  1.1
O4     .470  .182 .1669  1.0
O5     .376  .208 .2799  1.0
O6     .762  .012 .1852  1.1
O7     .974  .180 .2020   .7
O8     .774  .088 .2920   .8
O9     .636  .170 .7365   .8
O10    .938  .080 .6312   .6
OH11   .179  .072 .4404   .9
OH12   .686  .121 .5449   .9
Wat13  .032  .198 .8150  1.0
O14    .337  .053 .0607  1.3
Wat15  .790  .181 .0557  1.3
O16    .606  .057 .8599  1.1
Wat17  .233  .051 .9458  1.2
OH18   .798  .109 .4247   .8
O19    .827  .109 .9318  1.6
OH20   .285  .133 .5541  1.1
Wat21  .413  .246 .4238  1.6