Hilgardite Rumanova I M, Iorysh Z I, Belov N V Soviet Physics Doklady 22 (1977) 460-462 Crystal structure of triclinic chilgardite Ca2[B5O9]Cl*H2O = Ca2[B3+-B2deltaO9]Cl*H2O Note: polytype hilgardite-1A Locality: not given _database_code_amcsd 0015604 6.463 6.564 6.302 61.63 118.77 105.78 P1 atom x y z Biso Ca1 0 0 0 1.28 Ca2 .5462 .4527 -.1125 1.31 B1 .5258 .1280 .5313 .78 B2 .6678 -.0893 .3964 .91 B3 .4459 -.0233 -.0714 .97 B4 .1183 -.0048 .5198 .94 B5 .5524 .5777 .2896 .92 O2 .5523 .3567 .3259 1.22 O3 .2773 .0372 .4160 1.2 O4 .5786 .1456 .7750 1.0 O5 .6913 -.0292 .5987 1.08 O6 .8914 -.0513 .3639 1.3 O7 .6073 .6489 .4823 1.22 O8 .4914 .0329 .1418 1.11 O9 .1904 -.0131 -.2364 1.23 O10 .5150 .7361 .0306 1.21 Cl .0214 .5265 .1924 1.68 Wat .1107 .4169 -.2212 2.02