Svyatoslavite Takeuchi Y, Haga N, Ito J Zeitschrift fur Kristallographie 137 (1973) 380-398 The crystal structure of monoclinic CaAl2Si2O8: a case of monoclinic structure closely simulating orthorhombic symmetry Locality: synthetic _database_code_amcsd 0019486 8.228 8.621 4.827 90 90.00 90 P2_1 atom x y z occ Biso Ca1 .7470 .4738 .8642 .403 .48 Ca2 .2498 0 .3440 .564 1.42 SiT1 .9503 .1498 .8945 .25 AlT2 .0650 .3360 .3976 .70 SiT3 .4454 .3276 .3952 .45 AlT4 .5676 .1373 .8941 .62 O1 .0609 .1819 .1737 1.05 O2 .0380 .0021 .7381 .88 O3 .7614 .1378 .0021 1.47 O4 .9540 .2974 .6863 .50 O5 .5619 .2930 .6604 .60 O6 .5254 .4807 .2486 1.30 O7 .2664 .3714 .4789 .81 O8 .4408 .1762 .1895 1.11