Brachina vs Murchison

Brachina is a meteorite found in South Australia in 1974 and is the type specimen of the brachinites, a group of primitive achondrites. It is composed predominantly of olivine, accompanied by smaller amounts of pyroxene, plagioclase, chromite, metal, and sulfide. Its texture and chemistry record extensive thermal processing and partial melting on a differentiated asteroid while preserving some com...

The Murchison meteorite is a carbonaceous chondrite that fell near Murchison in Victoria, Australia, in 1969. Classified as a CM2 meteorite, it contains abundant organic compounds, including numerous amino acids, and has been studied extensively in research on prebiotic chemistry. Its chemically primitive material helps scientists investigate processes that occurred early in the Solar System and t...