In JGR-Planets (Journal of Geophysical Research-Planets):
Parra, S. A. Greenberger, R. N. Ehlmann, B. L. Microimaging Spectroscopy of Carbonaceous Chondrites and Comparison to the Spectral Diversity of Asteroids 2025JE009048
We know meteorites are pieces of asteroids… but past that, the trail starts to grow cold. Aside from some lucky coincidences (minerals with obvious spectral features), we haven’t conclusively and generally linked which meteorite classes correspond to which asteroid types. For carbonaceous chondrites in particular, such meteorites are dark, and pretty featureless in the visible spectrum. They loosely correspond to dark (assumed carbonaceous) asteroids, but there are lots of those, with no more spectral data to act as hints. Even Ryugu and Bennu samples don’t flesh out this puzzle.
Parra et al. try a different tack. They break down components of meteorites, looking for things we may have missed in the bigger picture.