Osumilite
Winter W, Armbruster T, Lengauer C
European Journal of Mineralogy 7 (1995) 277-286
Crystal structure refinement of synthetic osumilite-type
phases: BaMg2Al6Si9O30, SrMg2Al6Si9O30 and Mg2Al4Si11O30
Sample: MAS, Mg2Al4Si11O30
_database_code_amcsd 0006584
10.058 10.058 14.336 90 90 120 P6/mcc
atom     x     y     z  occ Biso
BaC      0     0   1/4  .09  2.0
MgA    1/3   2/3   1/4       2.0
SiT1 .1046 .3533 .1054   .9  2.0
AlT1 .1046 .3533 .1054   .1  2.0
AlT2   1/2   1/2   1/4       2.0
O1   .1289 .4134     0       2.0
O2   .2220 .2936 .1293       2.0
O3   .1468 .4980 .1799       2.0