We have a large variety of CO3 meteorites for sale . A CO3 carbonaceous chondrite is one of the rarest primitive meteorites, formed from the earliest solid materials in our solar system. It contains tiny chondrules and refractory inclusions (<0.2 mm) within a fine-grained matrix—showing minimal alteration since formation. As a type 3, this specimen preserves pristine textures and mineral structures, making it highly valuable for collectors and researchers alike.