Sperrylite Stassen W N, Heyding R D Canadian Journal of Chemistry 46 (1968) 2159-2163 Crystal structures of RuSe2, OsSe2, PtAs2, and alpha-NiAs2 Locality: synthetic _database_code_amcsd 0012152 5.968 5.968 5.968 90 90 90 Pa3 atom x y z Pt 0 0 0 As .385 .385 .385