Calciborite Shashkin D N, Simonov M A, Belov N V Doklady Akademii Nauk SSSR 195 (1970) 345-348 Crystal structure of calciborite CaB2O4=Ca2[BO3BO]2 _database_code_amcsd 0012450 8.38 13.82 5.006 90 90 90 Pccn atom x y z Biso Ca .386 .143 .123 .56 B1 .537 .139 .624 .56 B2 .742 .052 .365 .56 O1 .391 .185 .633 .56 O2 .742 -.009 .114 .56 O3 .596 .112 .365 .56 O4 .885 .112 .378 .56