AM_Apatite-(CaOH)_22
Formula: Ca5 (As.727 P2.273) O13 H
Name: Apatite-(CaOH)
Unit cell: 9.5075 9.5075 6.9187 90.0 90.0 120.0 , V=541.61
Space group: P63/M (176)

Lee Y J , Stephens P W , Tang Y , Li W , Phillips B L , Parise J B , Reeder R J , American Mineralogist , 94 (2009) p.666-675, Arsenate substitution in hydroxylapatite: Structural characterization of the, Ca5(PxAs1-xO4)3OH solid solution, Sample: As24, Locality: synthetic