Celestine Antao S M American Mineralogist 97 (2012) 661-665 Structural trends for celestite (SrSO4), anglesite (PbSO4), and barite (BaSO4): confirmation of expected variations within SO4 groups Locality: Saxony, Ngar Majunga, Madagascar _database_code_amcsd 0018844 6.87032 8.36030 5.34732 90 90 90 Pbnm atom x y z occ Uiso Sr .15826 .18405 .25 .966 .0101 Fe .15826 .18405 .25 .001 .0101 Ba .15826 .18405 .25 .001 .0101 S .1843 .4388 .75 .0089 O1 .0933 .5952 .75 .0168 O2 .0401 .3067 .75 .0155 O3 .3120 .4223 .9743 .0112