The Ipitinga meteorite is classified as a group H chondrite based on the composition of its minerals, particularly those of olivine and orthopyroxene, in addition to plagioclase and chromite. A group H classification is also confirmed by some mass chemical analyzes, which indicate Fe / SiO2 (0.78) and total Fe (27.17%). Based on the uniform compositions of olivine and pyroxene, the strong recrystallization of the matrix, the microgranoblastic and fibrous texture in many canal mesostases and the contours of poorly outlined chondrites, Ipitinga is placed in the petrological class 5 of Van Schmus & wood (1967). Also consistent with this classification are the low average CaO content of olivine (0.01%), considered typical of equilibrated chondrites by Dodd (1972) and the average Wo content of orthopyroxene (1.3 mol%), which is within the range of Wo 1.2-1.6 for class 5 petrological meteorites, given by Scott et al. (1986). Additional characteristics, such as the presence of weak undulating extinction and planar fractures in olivine, as well as the occasionally deformed aspect of plagioclase, indicate that the meteorite is slightly modified by a shock event, belonging to stage S3 by Stoffler et al. (1991). For more information, the link to access the source is http://rigeo.cprm.gov.br/jspui/handle/doc/532. Source: Dreher et al. (1995).