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 = 0.000 _database_code_amcsd 0018767 7.36657 7.36657 15.5844 90 90 90 *P4/ncc .25 -.25 0 atom x y z occ Uiso Sr .25 .75 0 .068 Cu .25 .25 .0885 .080 Si .5082 .9303 .1507 .023 O1 .4519 .9811 .2469 .5 .070 O2 .7148 .0013 .1310 .075 O3 .3668 .0188 .0863 .072