A microscopic and electron lnicroprobe study of the Sete Lagoas chondrite shows that based on the compositions of olivine (Fa19.4), orthopyroxene (Fs17.l), and chromite, the chondrite belongs to the H-group. A well-developed chondritic texture, combined with slight variations in the compositions of ferromagnesian minerals, as well as the presence of glassy material (particularly in chondrules), suggest that the meteorite belongs to the petrologic class H4. Read more (PDF)
The Sete Lagoas, State of Minas Gerais,. Brazil, chondrite fell on December 15, I908. (approximate coordinates 19928'5, 44013'W). It was observed by only a few witnesses who reported noticing sound effects. Four stones were recovered, weighing a total of 63 grams. Read more (PDF)