Pyrite Schmid-Beurmann P, Lottermoser W Physics and Chemistry of Minerals 19 (1993) 571-577 57Fe-Moessbauer spectra, electronic and crystal structure of members of the CuS2-FeS2 solid solution series _database_code_amcsd 0007752 5.7249 5.7249 5.7249 90 90 90 Pa3 atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Fe 0 0 0 .75 .0077 .0077 .0077 -.004 -.004 -.004 Cu 0 0 0 .25 .0077 .0077 .0077 -.004 -.004 -.004 S .3966 .3966 .3966 .0074 .0074 .0074 -.0012 -.0012 -.0012