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Northwest Africa 10549
Basic information Name: Northwest Africa 10549
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10549
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 79.2 g
Meteoritical Bulletin:  MB 105  (2016)  LL(L)3
Recommended:  LL(L)3    [explanation]

This is 1 of 23 approved meteorites classified as LL(L)3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 27 Feb 2016
Writeup from MB 105:

Northwest Africa 10549 (NWA 10549)

(Northwest Africa)

Purchased: 2013 Feb

Classification: Ordinary chondrite (LL(L)3)

History: Purchased by Darryl Pitt in February 2013 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, fairly closely-packed chondrules (apparent diameter 1.3 ± 0.8 mm) are set in a finer matrix.

Geochemistry: Olivine (Fa9.8-39.9, Cr2O3 in ferroan olivine 0.05-0.15 wt.%, mean 0.08±0.03 wt.%, N = 8), orthopyroxene (Fs2.3-27.9Wo0.6-2.3, N = 3), clinopyroxene (Fs2.5Wo38.7; Fs18.9Wo33.0, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.35.

Classification: Ordinary chondrite (LL(L)3).

Specimens: 16.56 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2013 Feb
Mass (g):79.2
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):9.8-39.9
Ferrosilite (mol%):2.3-27.9
Wollastonite (mol%):0.6-2.3
Magnetic suscept.:4.35
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):16.56
Type spec location:UWB
Main mass:D. Pitt
Comments:DP 733; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 8746 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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