| | Encyclopedia: Carbonaceous chondrite (Site not responding. Last check: 2007-11-07) |
 | | CO chondrites, named after the Ornans meteorite that fell in France in 1868, are related in chemistry and composition to the CV chondrites and may, with them, represent a distinct clan of carbonaceous chondrites that formed in the same region of the early solar system. |
| | All carbonaceous chondrites are primitive and undifferentiated meteorites that formed in oxygen-rich regions of the primordial solar nebula so that most of the metal is not found in its free form but in the form of silicates, oxides, or sulfides. |
| | However, the carbonaceous chondrites are a rather heterogenous class, and there are different clans and groups of carbonaceous chondrites that formed on their respective parent bodies in different regions of the early solar nebula. |
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