" The material, which resembles loosely held-together concreted dust and particles, never underwent the violent cosmic collisions that most ancient space debris

" The material, which resembles loosely held-together concreted dust and particles, never underwent the violent cosmic collisions that most ancient space debris experienced as it smashed together to create the planets and moons of our solar system. It doesn’t appear to have undergone thermal metamorphism, which means it’s been sitting out there, past Mars, untouched, since before any of the planets were created meaning we have the rare opportunity to examine a piece of our primordial past." Basically, if the wording is correct, that's unusual even for meteorites.