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Northwest Africa 8664
Basic information Name: Northwest Africa 8664
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8664
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 2.93 kg
Meteoritical Bulletin:  MB 104  (2015)  L3
Recommended:  L3    [explanation]

This is 1 of 791 approved meteorites (plus 1 unapproved name) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 18 Dec 2015
Writeup from MB 104:

Northwest Africa 8664 (NWA 8664)

(Northwest Africa)

Purchased: 2014 Apr

Classification: Ordinary chondrite (L3)

History: Purchased by Eric Twelker in April 2014 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, very closely packed chondrules occur in a very sparse metal-bearing matrix.

Geochemistry: Olivine (Fa3.9-37.1; Cr2O3 in ferroan olivine 0.04-0.17 wt.%, N = 7), orthopyroxene (Fs2.0-20.6Wo0.5-0.8, N = 3), augite (Fs4.3Wo37.7, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.86.

Classification: Ordinary chondrite (L3). L designation based on magnetic susceptibility.

Specimens: 23.3 g plus one polished thin section at UWB. The remainder is held by Twelker.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2014 Apr
Mass (g):2934
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):3.9-37.1
Ferrosilite (mol%):2.0-20.6
Wollastonite (mol%):0.5-0.8
Magnetic suscept.:4.86
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):23.3
Type spec location:UWB
Main mass:E. Twelker
Comments:ET14-1; 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)
Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 8674 approved meteorites from (Northwest Africa) (plus 1882 unapproved names)

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