MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 29 Jan 2023
Search for: Search type: Search limits: Display: Publication:
Text help
Starts with
Sounds like
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 7451
Basic information Name: Northwest Africa 7451
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7451
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 2.1 kg
Meteoritical Bulletin:  MB 102  (2013)  L6-melt breccia
Recommended:  L6-melt breccia    [explanation]

This is 1 of 70 approved meteorites classified as L6-melt breccia.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Sep 2013
Writeup from MB 102:

Northwest Africa 7451 (NWA 7451)

(Northwest Africa)

Purchased: 2012 Aug

Classification: Ordinary chondrite (L6, melt breccia)

History: Purchased by Aaronson in 2011 November in Temara, Morocco.

Petrography: Fairly fresh specimen composed of clasts of L6 chondrite material containing rare chondrules within a in a shock darkened matrix containing ragged, variably-sized grains of Fe-Ni metal. Olivine, orthopyroxene, pigeonite, subcalcic augite, sodic plagioclase, chromite, stained kamacite and troilite.

Geochemistry: Olivine (Fa24.2-24.4), orthopyroxene (Fs20.4-22.3Wo1.6-3.3), pigeonite (Fs16.4Wo18.8), subcalcic augite (Fs11.4Wo34.9).

Classification: Ordinary chondrite (L6-melt breccia).

Data from:
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2012 Aug
Mass (g):2100
Class:L6-melt breccia
Shock stage:S4
Weathering grade:W0/1
Fayalite (mol%):24.2-24.4
Ferrosilite (mol%):20.4-22.3
Wollastonite (mol%):1.6-3.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):24
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1373; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:

     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

Direct link to this page