Wesselsite
Knight K S, Henderson C M B, Clark S M
European Journal of Mineralogy 22 (2010) 411-423
Structural variations in the wesselsite-effenbergerite (Sr1-xBaxCuSi4O10)
solid solution
Locality: synthetic
Sample: x = .492
_database_code_amcsd 0018772
7.38813 7.38813 15.8516 90 90 90 *P4/ncc
.25 -.25 0
atom     x     y     z  occ Uiso
Ba     .25   .75     0 .492 .085
Sr     .25   .75     0 .508 .085
Cu     .25   .25 .0923      .091
Si   .5126 .9342 .1522      .044
O1   .4522 .9875 .2456   .5 .113
O2   .7187 .0003 .1341      .094
O3   .3753 .0242 .0885      .102