Datolite Pavlov P V, Belov N V Soviet Physics Crystallography 4 (1959) 300-314 The structures of herderite, datolite and gadolinite determined by direct methods Locality: origin of crystal not given _database_code_amcsd 0015536 9.62 7.60 4.84 90 90. 90 P2_1/a atom x y z Ca .339 .108 .990 B .340 .410 .576 Si .086 .262 .471 O1 .040 .395 .242 O2 .460 .304 .671 O3 .210 .327 .676 O4 .142 .092 .320 OH5 .336 .415 .258