Laurite Lutz H D, Muller B, Schmidt T, Stingl T Acta Crystallographica C46 (1990) 2003-2005 Structure refinement of pyrite-type ruthenium disulfide, RuS2, and ruthenium diselenide, RuSe2 _database_code_amcsd 0010195 5.6106 5.6106 5.6106 90 90 90 Pa3 atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ru 0 0 0 .00225 .00225 .00225 -.000127 -.000127 -.000127 S .38831 .38831 .38831 .00305 .00305 .00305 .00023 .00023 .00023