Transmitted and Polarized Light Image Credit: Amanda Tosi

Transmitted Light Image Credit: Amanda Tosi

Fragment of the Santa Vitória do Palmar meteorite with its fusion crust and regions showing terrestrial weathering. Image Credit: André Moutinho

Fragment of the Sete Lagoas meteorite showing its internal chondritic texture, many metallic spots (some with terrestrial oxidation in the surroundings) and the fusion crust. Image Credit: André Moutinho

Fragment of Sete Lagoas meteorite. Image Credit: André Moutinho

The only fragment weighing 400 g. It has a dark and shiny fusion crust, due to the high content of Ca, found mainly in anorthitic plagioclases. Source: TOSI A.A.

Porphyritic texture mainly formed by anorthitic Plagioclase and Clinopyroxenes grains. Some pigeonite have augite exsolution, as seen in light gray CPX grains. Source: TOSI A.A.

Small grains of Troilite (FeS) and Ilmenite (FeTiO3) (white). In medium gray Clinopyroxenes and with darker one, grains of plagioclase Anortite. Source: TOSI A.A.

Fragment of the Serra de Magé achondritic meteorite, classified as Eucrite. Image Credit: Amanda Tosi

Opaque grains such as Ilmenite and Titanomagnetite (white). In light gray pyroxene and dark gray plagioclase or maskelinite (glass from plagioclase due to high pressure shock events). Presence of small opaque grains in the plagioclase glass. Source: TOSI A.A.

In the center clinopyroxene grain with heterogeneous chemistry. The edges is richer in Fe and the center there is more presence of Ca and Mg. Source: TOSI A.A.

In the center clinopyroxene grain with heterogeneous chemistry. The edges is richer in Fe and the center there is more presence of Ca and Mg. Source: TOSI A.A.

Markable texture with veins formed by moderate to strong shock events. Image Credit: M. E. Zucolotto

Polarized Transmitted Light Mosaicism in olivine, typical of the higher shock stages. Image Credit: M. E. Zucolotto

Fragment of theTrês Irmãos meteorite exihibiting its texture and the fusion crust on the surface. Image Credit: André Moutinho

WDS Compositional Map of Al 15KeV - 20nA - 2msec. The compositional map of the Al element, present in some minerals, evidence different textures and, consequently, the breccias presents in the Serra Pelada meteorite. Image Credit: Amanda Tosi

Backscattered electron image (compo) 15KeV - 20nA - 2msec. Image Credit: Amanda Tosi

Fragment of the Serra Pelada meteorite showing its dark and shiny fusion crust, typical of a Eucrite from the asteroid Vesta. Image Credit: André Moutinho

Only fragment found of the São José do Rio Preto meteorite. Image Credit: M. E. Zucolotto

Transmitted Light Image Credit: Amanda Tosi

Transmitted and Polarized Light Image Credit: Amanda Tosi

Fragment of the Uberaba meteorite showing its chondritic texture of petrographic type 5 , some points of terrestrial oxidation around the metals and fusion crust on the surface. Image Credit: André Moutinho