Purpurite Bjoerling C, Westgren A Geologiska Foreningens i Stockholm Forhandlingar 60 (1938) 67-72 Minerals of the Varutrask pegmatite. IX. X-ray studies on triphylite, varulite, and their oxidation products _cod_database_code 1011230 _database_code_amcsd 0018097 4.76 9.68 5.819 90 90 90 Pbnm atom x y z occ Mn1 -.0278 .2778 .25 .65 Fe1 -.0278 .2778 .25 .35 P1 .4167 .0972 .25 O1 -.25 .0556 .25 O2 .25 .4444 .25 O3 .1944 .1667 .0278