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Northwest Africa 12244
Basic information Name: Northwest Africa 12244
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12244
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 174.8 g
Classification
  history:
Recommended:  LL3    [explanation]

This is 1 of 299 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 27 Oct 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12244 (NWA 12244)

Morocco

Purchased: 2018 May

Classification: Ordinary chondrite (LL3)

History: Found near Bir Lahlou, Western Sahara, and purchased by DPitt in May 2018 from a Mauritanian dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Fairly closely-packed, well-formed chondrules (apparent diameter 780 ± 630 µm, N = 21) are set in a sparse finer grained matrix.

Geochemistry: Olivine (Fa0.3-49.1, Cr2O3 in ferroan examples 0.07-0.10 wt.%, mean 0.09±0.01 wt.%, N = 8), orthopyroxene (Fs2.3-25.2Wo0.5-3.8, N = 3), pigeonite (Fs18.0Wo14.6), subcalcic augite (Fs23.7Wo22.4). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.80.

Classification: Ordinary chondrite (LL3).

Specimens: 25.6 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2018 May
Mass (g):174.8
Pieces:1
Class:LL3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.3-49.1
Ferrosilite (mol%):2.3-25.2
Wollastonite (mol%):0.5-3.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):25.6
Type spec location:UWB
Main mass:D. Pitt
Comments:Work name MVCH 372; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1312 approved meteorites from Morocco (plus 14 unapproved names) (plus 1 impact crater)

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