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 = 90 K _database_code_amcsd 0008889 5.8003 15.1259 6.1873 90 116.422 90 Ia atom x y z Uiso Ca .5 .3274 .25 .0047 P -.0101 .3227 .7272 .0004 OD1 -.0103 .3679 -.0364 .0051 O2 .2556 .2819 .8210 .0033 O3 -.0643 .3934 .5407 .0046 O4 .7787 .2530 .6348 .0021 OD2O1 .3666 .4256 .4852 .0050 OD2O2 .5255 .4463 .0131 .0104 D1 -.0979 .3302 .0337 .0180 D2 .3841 .4893 .4912 .0154 D3 .2054 .4122 .4850 .0172 D4 .5107 .5107 .0156 .0246 D5 .5003 .4328 .8540 .0280