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 = 275 K _database_code_amcsd 0008897 5.8091 15.1656 6.2259 90 116.407 90 Ia atom x y z Uiso Ca .5 .3274 .25 .0082 P -.0082 .3220 .7292 .0015 OD1 -.0105 .3669 -.0391 .0102 O2 .2566 .2817 .8229 .0093 O3 -.0594 .3927 .5413 .0098 O4 .7778 .2532 .6339 .0060 OD2O1 .3655 .4260 .4812 .0154 OD2O2 .5288 .4457 .0191 .0244 D1 -.0982 .3299 .0332 .0249 D2 .3826 .4890 .4899 .0207 D3 .2054 .4119 .4794 .0269 D4 .5188 .5103 .0211 .0462 D5 .5070 .4335 .8655 .0509