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Northwest Africa 14227
Basic information Name: Northwest Africa 14227
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14227
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 40 g
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 594 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 18 Sep 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14227 (NWA 14227)

(Northwest Africa)

Purchased: 2021 Jan

Classification: Ureilite

History: The meteorite was purchased from a meteorite dealer in Ouarzazate, Morocco.

Physical characteristics: Brownish rock without fusion crust.

Petrography: The meteorite shows a granular texture of olivine and pigeonite grains up to 1.0 mm in sizes with some triple junctions. Olivine and pyroxene have characteristic reduced Mg-rich rims associated with FeNi-metal or graphite. The meteorite contains flaky graphite and abundant iron oxide veins.

Geochemistry: reduced rims in olivine: Fa2.5-5.6; olivine contains 0.56±0.03 wt% Cr2O3 and 0.32±0.02 wt% CaO; reduced rims in orthopyroxene: Fs1.1-1.3Wo0.6-0.7; orthopyroxene contains 1.05±0.02 wt% Cr2O3 and 1.14±0.03 wt% Al2O3

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Ouarzazate, Morocco
Date:P 2021 Jan
Mass (g):40
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):12.5±0.1 (n=7)
Ferrosilite (mol%):14.3±0.1 (n=5)
Wollastonite (mol%):6.7±0.1 (n=5)
Classifier:A. Greshake, MNB
Type spec mass (g):11.5
Type spec location:MNB
Main mass:Noreddine Azelmat
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8025 approved meteorites from (Northwest Africa) (plus 1951 unapproved names)

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