LL4 Meteorite Classification

Class Description

The classification “LL4” refers to an ordinary chondrite from the LL group that falls into petrologic type 4. Ordinary chondrites are a significant category of meteorites known for their unique chemical composition, high proportion of chondrules (tiny spherical grains), and specific isotopic characteristics. In this case, the meteorite is identified as type 4, indicating that it contains abundant chondrules and has undergone metamorphism, which altered the mineral composition and structure, but lacks primary igneous chondrule glass.

LL4 Meteorite Examples

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