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When the fragments were put together, the Barwell Meteorite was about the size of a Christmas turkey, making it the largest meteorite to fall in this country in recorded history.The rock itself is a carbonaceous chrondrite and probably came from the Asteroid Belt. Essentially, these are the last remaining authenticated Baygorria left in the private sector.Patios and rooftops in Allende, Mexico were pelted by a huge rain of stones which more than doubled the then weight of all known CV3 material .
0/g : Acapulcoites are named after this unique meteorite - and there are precious few of them - and they are ALL small. However, Rubin of UCLA identified it as a second stone of Agoult. Ongoing research on this unique, unbreciated eucrite will undoubtedly yield interesting information. Since that time, however, whole specimens have become increasingly difficult to obtain.The unusual fine-grained mineralogy of Bells matrix can be reasonably attributed to the combined effects of aqueous alteration and advanced brecciation in a parent body environment.Extensive brecciation has assisted aqueous alteration by reducing chondrules and mineral grains into progressively smaller grains with high surface areas, which are more susceptible to dissolution reactions involving aqueous fluids.An additionally interesting characteristic of this meteorite in the broken- off fusion crust on the edges of typical specimens.One source told me this is due to "spaulation", a process wherein the individuals battered against one another after the explosion of the main mass and final fusion crusting process but before hitting the ground.