Fantastic plate with several cohenite inclusions, Widmanstatten patterns, Newman and Troilite nodules. It's an un-clustered octahedrite
Saint-Aubin was found in France in 1968, by farmers who were ploughing a field.
Iron meteorites are composed mainly of iron and nickel.
Actually, they are a piece of an asteroid core. In the differentiation process, when the asteroid is a ball of magma, during its formation, iron and nickel settle to the core of the asteroid, as they are the heaviest elements. After cooling, the asteroid metal core is formed. Through catastrophic collisions, the asteroid and its core break and the fragments remain in space, until a piece falls into our planet. They are estimated to account for 5.7% of falls.
The Widmanstätten pattern is the result of the intergrowth of taenite and kamacite strips, which are two iron and nickel alloys. In order to produce this pattern, very slow cooling is needed, of at least 1 degree Celsius per million years
At Expometeoritos, we take care of dissemination, talks, workshops, analyses, classification and exhibitions of meteorites.
We are members of:
.- IMCA (International Meteorite Collectors Association) #8187
.- Meteoritical Society
.- American Meteor Society
All our pieces are certified and, if the value of a piece is over €300, we also provide its chemical composition analysis, carried out in our facilities by X-ray spectrography.
- Minerale principale/ Nome meteorite
- SAINT AUBIN
- Forma minerale/Tipi di meteorite
- Linee Cohenite, Widmanstatten e Troilite
- Meteorite ferroso,
- 295 g
- Provenienza (regione/città)
- Provenienza (paese)