The Meteorite Tafassasset

The Meteorite Tafassasset
The Meteorite Tafassasset
Tafassites are a newly proposed group of carbonaceous, very primitive achondrite meteorites. Achondrite means that, unlike the much more common chondrites, they contain no or almost no millimetre-sized silicate globules. The Tafassassett meteorite case contains 26 stones that were found in the Tenere Desert of Niger in 2000 and 2001. This specimen is a cut sample from a 114-kilogramme find with the fusion crust typical of meteorites. It has a mass of 277 grams; the cube has an edge length of one centimetre. The parent body of Tafassasset formed in the same region of the protoplanetary disc and from the same source material as the CR chondrites (see previous image). However, with a formation age of around 1.1 million years, it formed earlier than the CR and Flensburg chondrites and was able to partially cool and differentiate.