Elpidite-Rb
Grigor'eva A A, Zubkova N V, Pekov I V, Kolitsch U, Pushcharovsky D Y,
Vigasina M F, Giester G,Dordevic T, Tillmanns E, Chukanov N V
Crystallography Reports 56 (2011) 832-841
Crystal chemistry of elpidite from Kahn Bogdo (Mongolia)
and its K- and Rb-exchanged forms
Locality: Kahn Bogdo, Mongolia
Note: Rb-exchanged at 150 deg C
_database_code_amcsd 0018524
14.2999 14.4408 14.7690 90 90 90 Cmca
atom        x      y      z  occ   Uiso
Rb(1)      .5  .2509  .5093 .079   .035
Rb(2)      .5 .13663 .58254  .75  .0340
Rb(3)      .0  .3638 .07055  .61  .0377
Rb(4)      .0   .386  .0733  .22   .073
Rb(5)      .5  .1391   .597  .11   .099
Na        .25   .236    .75  .06   .067
Zr        .25    .25     .5      .01018
Si(1)  .39070 .10779 .36275      .01381
Si(2)  .38954 .38148 .65364      .01386
Si(3)  .24382 .04903 .64483      .01324
O(1)    .1522  .1960 .40971       .0254
O(2)    .1521 .01643  .3665       .0249
O(3)      .25  .0803    .75       .0270
O(4)    .2332 .13556 .58132       .0253
O(5)       .0  .1084  .3670       .0296
O(6)    .3371 -.0103  .6221       .0249
O(7)    .3751  .3566 .75949       .0280
O(8)    .3624  .1858 .43343       .0223
O(9)       .5  .0790  .3775       .0244
Wat(1)  .0648  .3294  .2436 .404   .043
Wat(2)     .0   .190   .733  .10   .041