Bustee vs Ibitira

Bustee is an aubrite meteorite that fell in northern India in 1852. Aubrites are rare, highly reduced achondrites composed predominantly of enstatite, with mineral chemistry indicating formation under conditions containing very little oxygen. As a documented nineteenth-century fall, Bustee provides researchers with material for investigating enstatite-rich parent bodies and the early differentiati...

Ibitira is a basaltic achondrite meteorite that fell near Martinho Campos in Minas Gerais, Brazil, in 1957. It was historically compared with eucrites because its mineralogy and basaltic texture indicate formation from differentiated planetary material. Its oxygen-isotope composition differs from that of typical HED meteorites linked to Vesta, however, so it is classified as an ungrouped achondrit...