Majorite Nakatsuka A, Yoshiasa A, Yamanaka T, Ohtaka O, Katsura T, Ito E American Mineralogist 84 (1999) 1135-1143 Symmetry change of majorite solid-solution in the system Mg3Al2Si3O12-MgSiO3 Sample: x = .52 _database_code_amcsd 0002262 11.4876 11.4876 11.4876 90 90 90 *I4_1/acd .5 .25 .125 atom x y z occ Biso MgX1 0 .25 .125 1.07 MgX2 .12502 0 .25 1.06 MgY 0 0 0 .260 .47 AlY 0 0 0 .480 .47 SiY 0 0 0 .260 .47 SiZ1 0 .25 .375 .54 SiZ2 .37505 0 .25 .52 O1 -.03272 .05022 .15410 .84 O2 .15435 -.03282 .05052 .89 O3 .05029 .15399 -.03288 .83