header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 16 Jan 2023
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
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 617 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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

Direct link to this page