Woodhouseite Pabst A American Mineralogist 32 (1947) 16-30 Some computations on svanbergite, woodhouseite and alunite _database_code_amcsd 0000036 6.75 6.75 6.75 62.07 62.07 62.07 R-3m atom x y z occ Ca 0 0 0 Al .5 0 0 S .310 .310 .310 .5 P .310 .310 .310 .5 O1 .405 .405 .405 O .520 .160 .160 OH -.12 .270 .270