L3.9-5 Meteorite Classification

Class Description

The L3.9-5 meteorite classification refers to a special kind of ordinary chondrite from the low-iron L group, consisting of a mixture (breccia) of materials that show characteristics of petrologic types 3 through 5. This means that these meteorites contain a variety of components, some with many chondrules and minimal alteration (type 3), and others where minerals have been more significantly altered and chondrules are less distinct (type 5), indicating a range of thermal metamorphism.

L3.9-5 Meteorite Examples

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