Fragment of the Nova Petrópolis meteorite with its Widmanstatten pattern and troilite crystals visible in the hand sample. It is classified as a IIIAB Medium Octaedrite. Image Credit: André Moutinho

Fragment of the meteorite Patos de Minas classified as IIAB Hexahedrite. Image Credit: André Moutinho

A slice of the Patos de Minas Hexahedrite meteorite, which does not exhibit a Widmanstatten pattern and is poorer in Ni, but it exhibits Neumann lines in its structure. Image Credit: M. E. Zucolotto

Fragment of the Pirapora meteorite showing its fusion crust and depressions on its surface known as remaglites, formed due to the meteorite's ablation when it enters the Earth's atmosphere. Image Credit: M. E. Zucolotto.

Fragment of the Pirapora meteorite classified as IIAB Hexahedrite. Image Credit: André Moutinho

Fragment of the Palmas de Monte Alto meteorite classified as a IIIAB Medium Octahedrite. Image Credit: M. E. Zucolotto and Wilton de Carvalho

Image of electrons scattered (made up). 20KeV - 20nA. Schreibersite crystal (Fe and Ni phosphide) in the middle of kamacite and with an iron phosphate crystal in the center with a darker gray color. Image Credit: Amanda Tosi

Reflected Light Plessite "in comb" associated with taenite and kamacite with decorated sub-grains. Image Credit: De Carvalho et al. (2018).

Fragment of the Patos de Minas meteorite classified as Complex Octahedrite IAB. Image Credit: M. E. Zucolotto

Patos de Minas classified as a Complex Octahedrite due to the Widmanstatten structure not being well defined. Image Credit: André Moutinho

Backscattered electron image (compo) 15KeV - 20nA Fe and Ni(Fe,Ni)3P phosphor crystal, rhabtite, embedded in the kamacite. Image Credit: Amanda Tosi

Backscattered electron image (compo) 15KeV - 20nA One of the lamellae of the widmanstatten pattern with rich Ni borders. Image Credit: Amanda Tosi

Fragment of the Pontes e Lacerda meteorite classified as Medium Octahedrite. Image Credit: André Moutinho

Fragment of the Pará de Minas meteorite classified as IVA Fine Octahedrite. Image Credit: André Moutinho

Fragment of the Piedade do Bagre meteorite showing the Widmanstatten pattern after the chemical attack on its surface. It is classified as a Medium Octahedrite, but without a chemical group. Image Credit: André Moutinho

Backscattered electron image (compo) 20KeV - 20nA It is possible to see the tabular crystals of rhabdites. The darkest part of the meteorite is magnetite, a product of terrestrial weathering in the meteorite. The other light crystals in the matrix are pentlandite and trolilite. Image Credit: Iara Ornellas

Backscattered electron image (compo) 20KeV - 20nA Scheibersite crystal - (FeNi) 3P - enbedded in the FeNi matrix. Image Credit: Iara Ornellas

Fragment of the Santa Catarina meteorite classified as IAB Ataxite showing its fusion crust. Image Credit: André Moutinho