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Pallasites are named after Peter Pallas for his study of this meteorite. Seymchan, discovered near the town by the same name, in far eastern Russia in 1967. This main group Pallasite has some areas free of olivine crystals, and may have formed near the junction of the core and the mantle of an asteroid.
Pallasites have a matrix of meteoric iron with embedded silicates (most of it olivine). [2] Mesosiderites are breccias which show signs of metamorphism. The meteoric iron occurs in clasts instead of a matrix. [3] [4] They are in the top rank of all Meteorite classification schemes, usually called "Type".
Stony–iron meteorites have always been divided into pallasites (which are now known to comprise several distinct groups) and mesosiderites (a textural term that is also synonymous with the name of a modern group). Below is a representation of how the meteorite groups fit into the more traditional classification hierarchy: [1]
Other meteorites fetch much more. A unique 4-pound pallasite meteorite featuring crystals of olivine and peridot recently sold for $60,480. That’s over $15,000 per pound!
Almost all pallasite meteorites are part of the pallasite main group. [1] References This page was last edited on 27 July 2023, at 14:47 (UTC). Text is ...
The pyroxene pallasite grouplet is a subdivision of the pallasite meteorites (stony-irons). [1] The grouplet is named "pyroxene pallasites" because they are the only pallasites that contain pyroxene. The grouplet was proposed in 1995. [2] It currently has only two members: the Vermillion and Yamato 8451 meteorite.
R.S. Clarke; et al. (2006), "Meteorites and the Smithsonian Institution", in Gerald Joseph Home McCall; A. J. Bowden; Richard John Howarth (eds.), The History of Meteoritics and Key Meteorite Collections: Fireballs, Falls and Finds, Geological Society of London, p. 242, ISBN 978-1-86239-194-9
Brahin is a meteorite pallasite found in 1810. [1] This is the second meteorite ever found in Russia (nowadays Belarus). [2] Sometimes it is also called Bragin or Bragim. It is quite common among collectors due to the affordable price of small partial slices.