Johnbaumite Biagioni C, Pasero M American Mineralogist 98 (2013) 1580-1584 The crystal structure of johnbaumite, Ca5(AsO4)3OH, the arsenate analogue of hydroxylapatite Locality: Harstigen mine, Varmland, Sweden _database_code_amcsd 0020732 9.7199 9.7221 6.9651 90.077 90.051 119.944 P6_3/m atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) As .3994 .3714 .25 .93 .0078 .0077 .0062 .0090 .0031 0 0 P .3994 .3714 .25 .07 .0078 .0077 .0062 .0090 .0031 0 0 Ca 1/3 2/3 .0028 .0151 .0183 .0183 .0086 .0091 0 0 Ca .2448 .9993 .25 .0127 .0117 .0140 .0115 .0056 0 0 O1 .3254 .4929 .25 .0166 .0210 .0100 .0203 .0090 0 0 O2 .5992 .4706 .25 .0213 .0097 .0140 .0379 .0043 0 0 O3 .3410 .2512 .4407 .0270 .0488 .0206 .0173 .0216 .0154 .0052 OH 0 0 .216 .5 .019 .0055 .0055 .046 .0028 0 0