Brushite Schofield P F, Knight K S, van der Houwen J A M, Valsami-Jones E Physics and Chemistry of Minerals 31 (2004) 606-624 The role of hydrogen bonding in the thermal expansion and dehydration of brushite, di-calcium phosphate dihydrate Sample: T = 125 K _database_code_amcsd 0008891 5.8016 15.1284 6.1916 90 116.418 90 Ia atom x y z Uiso Ca .5 .3272 .25 .0051 P -.0097 .3225 .7280 .0008 OD1 -.0102 .3678 -.0366 .0053 O2 .2554 .2819 .8217 .0038 O3 -.06324 .3933 .5409 .0060 O4 .7795 .2529 .6342 .0026 OD2O1 .3665 .4256 .4852 .0059 OD2O2 .5259 .4461 .0138 .0135 D1 -.0982 .3305 .0338 .0184 D2 .3839 .4891 .4905 .0164 D3 .2058 .4116 .4846 .0183 D4 .5119 .5106 .0171 .0254 D5 .5000 .4331 .8548 .0303