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Northwest Africa 11613
Basic information Name: Northwest Africa 11613
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11613
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 354 g
Classification
  history:
Recommended:  H7    [explanation]

This is 1 of 18 approved meteorites classified as H7.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 20 Feb 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11613 (NWA 11613)

(Northwest Africa)

Purchased: 2017 Aug

Classification: Ordinary chondrite (H7)

History: Purchased in Temara, Morocco, by Aaronson in August 2017.

Petrography: (A. Irving and S. Kuehner, UWS) Recrystallized and equilibrated specimen lacking chondrule remnants, but containing some orthopyroxene poikiloblasts enclosing smaller olivine grains. Primary metal is partly altered and some cross-cutting iron hydroxide veinlets are present.

Geochemistry: Olivine (Fa18.2-18.3, N = 3), orthopyroxene (Fs16.0-16.1Wo3.5-4.3, N = 2), clinopyroxene (Fs6.9-7.2Wo43.4-41.4, N = 2).

Classification: Ordinary chondrite (H7).

Specimens: 21.5 g including one polished thin section at UWB; main mass with Aaronson.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2017 Aug
Mass (g):354
Pieces:1
Class:H7
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):18.2-18.3
Ferrosilite (mol%):16.0-16.1
Wollastonite (mol%):3.5-4.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.5
Type spec location:UWB
Main mass:A. Aaronson
Comments:Work name M2047; 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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6461 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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