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 = 225 K _database_code_amcsd 0008895 5.8062 15.1482 6.2118 90 116.410 90 Ia atom x y z Uiso Ca .5 .3274 .25 .0072 P -.0096 .3223 .7283 .0011 OD1 -.0102 .3674 -.0379 .0082 O2 .2553 .2818 .8229 .0068 O3 -.0610 .3932 .5417 .0086 O4 .7782 .2531 .6343 .0047 OD2O1 .3650 .4257 .4826 .0121 OD2O2 .5267 .4461 .0163 .0194 D1 -.0981 .3299 .0333 .0219 D2 .3837 .4888 .4912 .0195 D3 .2057 .4118 .4823 .0231 D4 .5149 .5105 .0191 .0359 D5 .5038 .4331 .8608 .0427