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NWA
5019, HOW
© Ph.
Thomas (click to enlarge)
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Northwest
Africa 5019
Boudnib area, Morocco
Found August 2007
Howardite (HOW)
Declaration pending
Mass
(g): 6.73
Pieces: 1
Info:
Classified: Albert Jambon, UPVI; main mass, P. Thomas.
Nothing
for sale due to the small TKW.
La masse de cette
météorite étant très faible,
il n'y aura rien à vendre.
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Recommended
classes in the Meteoritical Bulletin Database
are assigned by the database editor. © The
Meteoritical Society
The
recommended classification Howardite means:
" An achondrite from
the howardite group."
The highlighted words are defined as follows:
Achondrite: A stony meteorite
that lacks chondrules and originated on a differentiated parent body.
Howardite: Howardites
are an abundant group of polymict-breccia achondrites that appear to
represent
mixtures of eucrites + diogenites (these three linked groups are collectively
known as HED meteorites and may come from asteroid 4 Vesta). The main
minerals in howardites are pyroxene (largely orthopyroxene) and Na-poor
plagioclase. A minority of howardites are rich in solar-wind noble
gases and thus inferred to be regolith breccias. |
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