header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 28 Sep 2020
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 7471
Basic information Name: Northwest Africa 7471
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7471
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 242 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  CO3
Recommended:  CO3    [explanation]

This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 6 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7471 (NWA 7471)

(Northwest Africa)

Purchased: 2012 Aug

Classification: Carbonaceous chondrite (CO3)

History: Purchased by GHupé in August 2012 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Composed of very small, well-formed chondrules and some CAI in a deep brown, fine-grained matrix.

Geochemistry: Olivine (Fa0.4-71.7; Cr2O3 in ferroan olivine = 0.10-0.36 wt.%, mean 0.22 wt.%, s.d. 0.09, N = 8), orthopyroxene (Fs1.1-13.6Wo1.1-2.5), subcalcic augite (Fs2.2Wo31.8; Fs1.6Wo37.7), augite (Fs1.0-2.3Wo44.7-48.6).

Classification: Carbonaceous chondrite (CO3).

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2012 Aug
Mass (g):241.9
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.4-71.7, n=10
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWB
Main mass:GHupé
Comments:GH-440; submitted by A. Irving
Institutions
   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)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7377 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

Direct link to this page