Yttrialite-(Y) Batalieva N G, Pyatenko Yu A Kristallografiya 16 (1971) 905-910 Artificial yttrialite (gamma-phase) - a representative of a new structure type in the rare earth diorthosilicate series _database_code_amcsd 0014180 7.50 8.06 5.02 90 112.0 90 P2_1/m atom x y z Biso Y1 0 0 0 2.9 Y2 .5 0 0 2.9 Si1 .120 .25 .588 2.9 Si2 .709 .25 .548 2.9 O1 .190 .25 .310 2.9 O2 .508 .25 .264 2.9 O3 .880 .25 .430 2.9 O4 .190 .090 .800 2.9 O5 .688 .090 .736 2.9