Full Slice type R3 - Rumurutite Chondrite Meteorite - 18×11×13 mm - 5.47 g

The meteorite officialy named NWA 12551 was found on the Sahara desert in 2017. It is a regolithic breccia (well visible millimetric to centimetric clast) , from the surface of the parent asteroid. It appears on thye Meteoritical Society database : https: //www. lpi. usra. edu/meteor/metbull. php? code=69527 The Rumuritites, or R Chondrites, are a very small group/family of meteorites, with only less than a 0. 1% occurence among all falls repertoried. The combined mass for all Rumurutites in collection is less than half the combined mass of all martian meteorites in collection ! With distinctive and unique geochimical and isotopic signatures, Rumurutite comes from an unrecognized parent body/asteroid on the outer primitive solar system. R chondrites have much more primordial dusty matrix material (about 50% of the rock) than other classes; they are much less reduced, containing little metallic Fe-Ni; and their enrichments in 17O are higher than those of ordinary chondrites. Nearly all the metal they contain is covalent state, in the form of sulfides or in silicates. They contain fewer chondrules than the E chondrites and most appear to come from an asteroid's regolith (not from a deep impact /ejection event, so probably why they are so rare) . This meteorite slice is sent with a signed certificat