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Manganites with La2/3Ca1/3Mn1-yFeyO3 (y = 0.01 y 0.03) composition were fabricated, by a solid-state reaction in powder and bulk form, using α-Fe2O3, hematite as a precursor, enriched with 95.06% of 57Fe. The hyperfine parameters obtained from the fits of Mössbauer spectrums, show the presence of Fe3+ in octahedral sites of the compounds. The c-axis parameters calculated from the fits to XRD measurements were (7.686(2) Å and 7.670(3) Å for 1 and 3% of Fe, respectively. Neither impurities nor additional phases were observed. Magnetization measures in function of temperature show a small reduction of transition temperature and magnetization when concentration of Fe increases. [ABSTRACT FROM AUTHOR]