Larnite Tsurumi T, Hirano Y, Kato H, Kamiya T, Daimon M Ceramic Transactions 40 (1994) 19-25 Crystal structure and hydration of belite Locality: synthetic _database_code_amcsd 0012182 5.5072 6.7511 9.3051 90 94.594 90 P2_1/n atom x y z Ca1 .229 .341 .431 Ca2 .222 -.001 -.297 Si .266 -.220 .418 O1 .223 .007 .438 O2 .008 -.322 .364 O3 .473 -.251 .316 O4 .343 -.316 -.426