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 0012183 5.5077 6.7505 9.3408 90 94.596 90 P2_1/n atom x y z Ca1 .228 .342 .429 Ca2 .226 .004 -.298 Si .268 -.215 .417 O1 .212 .007 .445 O2 .012 -.313 .362 O3 .478 -.246 .309 O4 .349 -.310 -.430