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 = 70 K _database_code_amcsd 0008887 5.7997 15.1257 6.1857 90 116.425 90 Ia atom x y z Uiso Ca .5 .3273 .25 .0043 P -.0088 .3227 .7283 .0007 OD1 -.0096 .3680 -.0357 .0042 O2 .2558 .2817 .8212 .0029 O3 -.0636 .3933 .5411 .0041 O4 .7797 .2530 .6350 .0018 OD2O1 .3671 .4258 .4855 .0044 OD2O2 .5252 .4464 .01287 .0094 D1 -.0971 .3302 .0342 .0177 D2 .3849 .4894 .4913 .0147 D3 .2064 .4119 .4855 .0168 D4 .5121 .5109 .0161 .0231 D5 .5009 .4329 .8539 .0268