L3.7-3.9 Meteorite Classification

Class Description

The classification “L3.7-3.9” refers to an ordinary chondrite from the L group that is a breccia, meaning it’s composed of fragments from different meteorites, all of which are of petrologic type 3. Ordinary chondrites from the L group are characterized by moderate-sized chondrules and specific oxygen isotope compositions, and petrologic type 3 indicates minimal aqueous alteration and distinct mineral features like monoclinic low-Ca pyroxene grains with twinning. In this case, the meteorite is a mixture of such components, all showing these characteristics.

L3.7-3.9 Meteorite Examples

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