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Northwest Africa 11274
Basic information Name: Northwest Africa 11274
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11274
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 495 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  L5/6
Recommended:  L5/6    [explanation]

This is 1 of 189 approved meteorites classified as L5/6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 11 May 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11274 (NWA 11274)

(Northwest Africa)

Purchased: 2015 Apr

Classification: Ordinary chondrite (L5/6)

History: Purchased by Mbark Arjdal in April 2015 from a farmer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Sparse chondrules occur in a recrystallized matrix containing stained metal, merrillite and chlorapatite.

Geochemistry: Olivine (Fa24.8-24.9, N = 2), orthopyroxene (Fs20.9-21.2Wo1.6-1.2, N = 2), clinopyroxene (Fs7.7-8.2Wo45.1-44.4, N = 2).

Classification: Ordinary chondrite (L5/6).

Specimens: 22 g including one polished thin sectiont at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2015 Apr
Mass (g):495
Pieces:1
Class:L5/6
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):24.8-24.9
Ferrosilite (mol%):20.9-21.2
Wollastonite (mol%):1.6-1.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):22
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj16-6; 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)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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