Brachinite

Source: Wikipedia, the free encyclopedia.
Slice of the Northwest Africa 3151 meteorite.

Brachinites are a group of meteorites that are classified either as

achondrites. Brachinites contain 74 to 98% (volume) olivine
.

Naming and history

Brachinites are named after the Brachina meteorite, the type specimen of this group, which in turn is named after Brachina, South Australia.[1]

Description

Brachinites consist almost entirely of

chondrites is the very high olivine/orthopyroxene ratio.[2]

Specimens

As of 2022, there were 56 meteorites classified as brachinites.[3] A notable example is the type specimen, the Brachina meteorite.

See also

References

  1. ^ "Brachina". Meteoritical Society. Retrieved 21 November 2022.
  2. ^ Nehru, C. E.; M. Prinz; M. K. Weisberg; M. Ebihara; R. N. Clayton; T. K. Mayeda (1992). "Brachinites: A New Primitive Achondrite Group". Meteoritics. 27 (3): 267.
  3. ^ "Meteoritical Bulletin Database". Meteoritical Society. Retrieved 21 November 2022.