Sorensenite Maksimova N V, Ilyukhin V V, Belov N V Soviet Physics Doklady 18 (1974) 681-682 Crystal structure of sorensenite _database_code_amcsd 0015600 20.78 7.45 12.05 90 117.1 90 Cc atom x y z Na1 .304 .227 .452 Na2 .198 .771 .059 Na3 .511 .948 .473 Na4 .999 .048 .487 Sn .4998 .2371 .2465 Be1 .248 .093 .989 Be2 .251 .408 .010 Si1 .3534 .0527 .2382 Si2 .1469 .5366 .2469 Si3 .3544 .4445 .2450 Si4 .1453 .9605 .2509 Si5 .1348 .2388 .0539 Si6 .3684 .7624 .4454 O1 .067 .956 .244 O2 .065 .561 .234 O3 .292 .965 .110 O4 .298 .523 .119 O5 .136 .081 .134 O6 .355 .933 .352 O7 .168 .747 .220 O8 .198 .254 .014 O9 .049 .738 .438 O10 .436 .449 .261 O11 .431 .039 .237 O12 .209 .474 .381 O13 .212 .036 .375 O14 .366 .578 .367 O15 .150 .431 .127 O16 .337 .248 .270 O17 .306 .255 .988 O18 .449 .259 .058 Wat19 .073 .212 .392 Wat20 .438 .747 .096