AM_Brushite Formula: Ca P O6 D5 Name: Brushite Unit cell: 5.79903 15.1254 6.18398 90.0 116.429 90.0 , V=485.72 Space group: I1A1 (9)

Schofield P F , Knight K S , van der Houwen J A M , Valsami-Jones E , Physics and Chemistry of Minerals , 31 (2004) p.606-624, The role of hydrogen bonding in the thermal expansion and dehydration, of brushite, di-calcium phosphate dihydrate, Sample: T = 4.2 K