AM_Osumilite_12
Formula: Sr.91 Mg2 Si9.18 Al5.82 O30
Name: Osumilite
Unit cell: 10.1273 10.1273 14.2274 90.0 90.0 120.0 , V=1263.70
Space group: P6/MCC (192)

Winter W , Armbruster T , Lengauer C , European Journal of Mineralogy , 7 (1995) p.277-286, Crystal structure refinement of synthetic osumilite-type, phases: BaMg2Al6Si9O30, SrMg2Al6Si9O30 and Mg2Al4Si11O30, Sample: CSr, SrMg2Al6Si9O30