30003- Nice NWA Unclassified Ordinary Chondrite Meteorite 320 g Complete Individual Alethopteris United States (1: New York)

United States (1: New York)

Nice specimen

Semi-quantitative EDS X-ray microanalysis was performed using EDS spot analysis with acquisition time 60s and maximum process time to achieve best resolu¬tion of peaks in spectra

Type specimen: USNM 96535

Precious specimen corresponding to the famous species of teropod dinosaur Tyrannosaurus rex

30003- Nice NWA Unclassified Ordinary Chondrite Meteorite 320 g Complete Individual Alethopteris United States (1: New York)These meteorites were found in the Saharan Desert in Northwest Africa, likely by nomads. In order to classify them it would be necessary to cut off a section for analysis. Although they are exceedingly rare when compared to terrestrial rocks, these are the most abundant type of meteorite and are referred to as common chondrites. H and L (designating the amount of metal contained) type chondrites have been already extensively studied. Composed largely