We present a wonderful and unusual sheet of Winonaite that is in the process of classification
Winonaites belong to the group of primitive achondrites
They are very scarce (about 25 meteorites were found so far).
In addition to some rare chondrule remains, winonaites show evidence of an intense thermal metamorphism and partial fusion.
The chemical and mineralogical composition of these meteorites is intermediate between the chondrites types H and E, although the oxygen isotope patterns of these meteorites allow us to establish some association with the silicate inclusions found in the metallic meteorites types IAB and IIICD
In fact, it is considered that they probably come from the same parent body, some being found on its surface and some others in the core, and for this reason these three types are often combined in the same family.
The properties of the silicates and metals that make up these meteorites seem to indicate that the body from which they came interrupted its differentiation, at least partially, due to one or more high-force impacts.
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.
- Minéral principal / Nom météorite
- Forme minérale / Type météorite
- Achondrite primitive, XXL très rare
- en classification
- 18 g
- Origine (région / ville)
- Origine (pays)
- Afrique du nord-ouest