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Northwest Africa 12471
Basic information Name: Northwest Africa 12471
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12471
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 751 g
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 493 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 27 Mar 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12471 (NWA 12471)

(Northwest Africa)

Purchased: 2018 March

Classification: Ureilite

Physical characteristics: Several similar looking brownish stones from subgram to 450 g.

Petrography: Blocky aggregate of pyroxene and plagioclase with typical grain size 800 µm. FeNi metal, and its terrestrial weathering products, is visibile as droplets in the silicates and along silicate grain rims. Carbon polymorph is present close to grain rims as patches up to 100 × x500 μm.

Geochemistry: Olivine Fa22.5 (n=2), rim Fa10.4 (n=1). Pyroxene Fs18.9Wo10.5 (n=2).

Classification: Ureilite

Specimens: Type specimen at CEREGE. Main mass with Kuntz.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Zagora, Morocco
Date:P 2018 March
Mass (g):751
Pieces:several
Class:Ureilite
Weathering grade:high
Fayalite (mol%):22.5±0.2 (n=2)
Ferrosilite (mol%):18.9±0.0 (n=2)
Wollastonite (mol%):10.5±0.1
Magnetic suscept.:4.33
Classifier:J. Gattacceca, L. Krämer Ruggiu, CEREGE
Type spec mass (g):25.38
Type spec location:CEREGE
Main mass:Kuntz
Comments:work name K378; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6709 approved meteorites from (Northwest Africa) (plus 2022 unapproved names)

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