Before becoming a collector's item, a meteorite is subjected to numerous scientific analyses.
Researchers seek to understand what it is, where it comes from, and what story it tells. They first study its physical and mineralogical characteristics: its appearance, density, texture, constituent minerals, and internal structure.
Chemical and isotopic analyses can then allow them to go much further. They make it possible to precisely identify the elements present in the meteorite and to search for the characteristic signatures of its extraterrestrial origin.
All this data is then compared with existing scientific knowledge in order to determine its classification.
This is what makes a meteorite so fascinating. Its matter bears the traces of its history. Its composition can reveal its origin. Its structure can testify to the events it has endured. Its minerals can inform us about the celestial body from which it originates.
Every fragment is thus a small archive of the cosmos.