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 = 60 K _database_code_amcsd 0008886 5.7994 15.1250 6.1850 90 116.426 90 Ia atom x y z Uiso Ca .5 .3275 .25 .0047 P -.0085 .3227 .7288 .0003 OD1 -.0088 .3681 -.0348 .0038 O2 .2559 .2817 .8222 .0029 O3 -.0633 .3933 .5420 .0040 O4 .7802 .2530 .6359 .0016 OD2O1 .3678 .4256 .4860 .0040 OD2O2 .5264 .4465 .0140 .0094 D1 -.0967 .3303 .0349 .0177 D2 .3853 .4892 .4917 .0146 D3 .2065 .4120 .4862 .0163 D4 .5127 .5108 .0168 .0231 D5 .5013 .4331 .8550 .0255