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Northwest Africa 2041
Basic information Name: Northwest Africa 2041
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2041
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 4.5 kg
Classification
  history:
Meteoritical Bulletin:  MB 91  (2007)  OC3
Recommended:  OC3    [explanation]

This is 1 of 10 approved meteorites classified as OC3.   [show all]
Search for other: Ordinary chondrites, Ordinary chondrites (type 3)
Comments: Approved 28 Mar 2007
Revised 24 Apr 2007: Revised nomenclature for classification
Writeuphelp
Writeup from MB 91:

Northwest Africa 2041

Morocco or Algeria

Find: June 2003

Ordinary Chondrite (type 3)

History: Purchased in June 2003 from a Moroccan dealer in Erfoud for D. Gregory.

Physical characteristics: Several stones weighing a total of 4.5 kg.

Petrography: (A. Irving and S. Kuehner, UWS) The samples contain abundant, fairly well-defined chondrules. Olivine, orthopyroxene, and small grains of troilite are present. Metal is absent.

Mineral compositions and geochemistry: Olivine (Fa5–25), orthopyroxene (Fs0–3). Oxygen isotopes: (D. Rumble, CIW) Laser fluorination of two whole rock samples (all reported as ‰); δ18O = 4.85, 4.875; δ17O = 3.00, 3.03; Δ17O = 0.449, 0.466.

Classification: Ordinary chondrite (type 3); S1, W2.

Type specimens: A total of 25.6 g of sample and one polished thin section are on deposit at UWS. Gregory holds the main mass.

Data from:
  MB91
  Table 2
  Line 65:
Place of purchase:Erfoud, Morocco
Date:2003
Mass (g):4500
Pieces:Many
Class:Type 3
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):5-25
Ferrosilite (mol%):0-3
Type spec mass (g):25.6
Plots: O isotopes:  
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)
CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address)
Gregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6877 approved meteorites from (Northwest Africa) (plus 2037 unapproved names)

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