Epididymite-potassian
Naumova I S, Pobedimskaya E A, Pushcharovskii D Y, Belov N V
Altukhova Yu N
Doklady Akademii Nauk SSSR 229 (1976) 856-859
Crystal structure of synthetic K2Be2Si6O15 of the epidimite group
Locality: synthetic
Note: c-cell edge altered to reproduce bond lengths
_database_code_amcsd 0012454
7.485 15.453 11.418 90 90 90 Cmc2_1
atom     x     y     z Biso
K1      .5 .2818 .3619 2.48
K2      .5 .3987  .084  .93
Be1  .1489 .3798 .2275  .26
Si1  .2117 .2095 .1336  .61
Si2  .2046 .0556 .3103   .4
Si3      0 .3497 .4659  .32
Si4      0 .4545 .0009  .52
O1    .322    .2 .0109  .67
O2   .2583 .1291 .2164 1.35
O3   .3245 .0764 .4296  .85
O4   .2701 .2958 .1945  .72
O5   .2704 .4623 .2631 1.16
O6       0  .216 .0948 2.36
O7       0 .4063 .1283  .68
O8       0 .0715 .3518  .13
O9       0 .3542  .332  .52
O10      0 .4409 .5256  .95