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Northwest Africa 7271
Basic information Name: Northwest Africa 7271
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7271
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 78 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  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 22 Aug 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7271 (NWA 7271)

(Northwest Africa)

Purchased: 2011 Sep

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Greg Hupé from a Morocco dealer in 2011 September.

Petrography: Well-formed, small chondrules, mineral fragments and rare CAI in a dark brown matrix. Predominant minerals are olivine, orthopyroxene, troilite and altered kamacite.

Geochemistry: Olivine (Fa1.0-60.4; Cr2O3 in ferroan olivine = 0.04-0.08 wt.%, mean 0.06 wt.%, s.d 0.02 wt.%, N = 7)), orthopyroxene (Fs1.9-5.2Wo0.5-2.0), clinopyroxene in CAI (Fs0.4Wo58.5).

Classification: Carbonaceous chondrite (CO3).

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2011 Sep
Mass (g):78
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):1.0-60.4
Ferrosilite (mol%):1.9-5.2
Wollastonite (mol%):0.5-2.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):15.8
Type spec location:UWB
Main mass:GHupé
Comments:GH-432; 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. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7374 approved meteorites from (Northwest Africa) (plus 1957 unapproved names)

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