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 = .193 _database_code_amcsd 0018769 7.3752 7.3752 15.6902 90 90 90 *P4/ncc .25 -.25 0 atom x y z occ Uiso Ba .25 .75 0 .193 .066 Sr .25 .75 0 .807 .066 Cu .25 .25 .0906 .091 Si .5093 .9317 .1511 .028 O1 .4511 .9850 .2460 .5 .063 O2 .7164 .0011 .1324 .076 O3 .3703 .0213 .0873 .081