Brachinite
Brachinites are a group of meteorites that are classified either as primitive achondrites or as asteroidal achondrites. Like all primitive achondrites, they have similarities with chondrites and achondrites. Brachinites contain 74 to 98% olivine.Brachinites are named after the Brachina meteorite, the type specimen of this group which in turn is named after Brachina, South Australia.Description
Brachinites are almost entirely made from olivine. Other minerals include plagioclase, iron sulfides, clinopyroxene and orthopyroxene. Trace minerals include phosphates and meteoric iron. The only deviation from chondrites is the very high olivine/orthopyroxene ratio.Specimen
There are currently 30 meteorites that are classified as brachinites. A notable example is the type specimen, the Brachina meteorite.
