Hematite Sawada H Materials Research Bulletin 31 (1996) 141-146 An electron density residual study of alpha-ferric oxide Locality: unknown natural _database_code_amcsd 0021157 5.0353 5.0353 13.7495 90 90 120 R-3c atom x y z Biso Fe 0 0 .355290 .349 O .30609 0 .25 .40