Modern Classification of Meteorites

Percentage of all falls Category Description and distinguishing features Chondrule character and/or letter designation 

AEROLITES or STONY METEORITES possess a chemical composition reflecting solar abundances of nonvolatile elements and are subdivided as achondrites and chondrites.  

1 Pallasites. These meteorites are mixtures of olivine and FeNi metal that formed deep in the core-mantle boundary of a small, differentiated asteroid. As the overlying cumulate olivine cooled and contracted, the still slightly molten metal was injected into the crystalline olivine forming a continuous matrix. Later collisions exposed this layer and delivered samples to Earth. There are three compositional clusters representing separate parent bodies. PAL 

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