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Northwest Africa 1924
Basic information Name: Northwest Africa 1924
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1924
Observed fall: No
Year found: 2001
Country: (Northwest Africa)
Mass:help 255 g
Classification
  history:
Meteoritical Bulletin:  MB 92  (2007)  CV3
Recommended:  CV3    [explanation]

This is 1 of 507 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 1 Sep 2006
Writeuphelp
Writeup from MB 92:

Northwest Africa 1924

Morocco or Algeria

Find: January 2001

Carbonaceous Chondrite (CV3)

History: Purchased in January 2001 in Erfoud, Morocco for D. Gregory.

Physical characteristics: A single stone weighing 255 g.
Petrography: (A. Irving and S. Kuehner, UWS) Separated olivine-rich chondrules (mostly micro-porphyritic) and sparse CAI (containing Al-Ti-rich clinopyroxene, Fe-rich spinel and anorthite) in a dark, relatively magnetite-rich matrix.Olivine, Cr-bearing magnetite, ilmenite, intermediate plagioclase, orthopyroxene, clinopyroxene and pentlandite.
Geochemistry: Olivine (Fa29.1), Ti-rich pyroxene (Wo70.3Fs0.05) with TiO2 = 16.2, Al2O3 = 17.8 (both wt%). Oxygen Isotopes: (D. Rumble, CIW) Laser fluorination analyses of two samples (all reported as ‰) δ18O = -3.01, -3.61; δ17O = -6.46, -7.04; Δ17O = -4.879, -5.139
.
Classification: Carbonaceous chondrite (CV3); S1, minimal weathering.
Specimens: A total of 20.4 g of sample and one polished thin section are on deposit at UWS. Gregory holds the main mass.

Data from:
  MB92
  Table 2
  Line 3:
Place of purchase:Efroud, Morocco
Date:Jan-2001
Mass (g):255
Pieces:1
Class:CV3
Type spec mass (g):20.4
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. 92, MAPS 42, 1647-1694 (2007)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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