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 = 80 K _database_code_amcsd 0008888 5.8000 15.1256 6.1866 90 116.422 90 Ia atom x y z Uiso Ca .5 .3274 .25 .0044 P -.0089 .3227 .7285 .0005 OD1 -.0098 .3678 -.0355 .0045 O2 .2556 .2819 .8214 .0033 O3 -.0637 .3934 .5412 .0045 O4 .7799 .2531 .6358 .0018 OD2O1 .3674 .4258 .4861 .0046 OD2O2 .5256 .4463 .0132 .0105 D1 -.0974 .3301 .0343 .0175 D2 .3843 .4891 .4915 .0147 D3 .2061 .4118 .4856 .0167 D4 .5117 .5109 .0156 .0252 D5 .5007 .4332 .8549 .0272