Ferroselite Kjekshus A, Rakke T, Andresen A Acta Chemica Scandinavica A28 (1974) 996-1000 Compounds of the marcasite type crystal structure. IX. Structural data for FeAs2, FeSe2, NiAs2, NiSb2, and CuSe2 Locality: synthetic _database_code_amcsd 0011936 4.8002 5.7823 3.5834 90 90 90 Pnnm atom x y z Fe 0 0 0 Se .2127 .3701 0