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Northwest Africa 11609
Basic information Name: Northwest Africa 11609
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11609
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 253 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  L4/5
Recommended:  L4/5    [explanation]

This is 1 of 77 approved meteorites (plus 1 unapproved name) classified as L4/5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 22 Jan 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11609 (NWA 11609)

Northwest Africa

Purchased: 2017 Oct

Classification: Ordinary chondrite (L4/5)

History: Purchased by Ben Hoefnagels in October 2017 from a dealer in Marrakech, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Fairly well-formed chondrules are present within a recrystallized matrix containing stained metal.

Geochemistry: Olivine (Fa25.5-25.6, N = 3), orthopyroxene (Fs20.9-21.0Wo1.4-1.5, N = 2), clinopyroxene (Fs6.7Wo46.0).

Classification: Ordinary chondrite (L4/5).

Specimens: 21.2 g including one polished thin section at UWB; main mass with Mr. B. Hoefnagels.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Marrakech
Date:P 2017 Oct
Mass (g):253
Pieces:1
Class:L4/5
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):25.5-25.6
Ferrosilite (mol%):20.9-21.0
Wollastonite (mol%):1.4-1.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.2
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:Work name BH128; 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 Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7328 approved meteorites from (Northwest Africa) (plus 1973 unapproved names)

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