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Northwest Africa 11670
Basic information Name: Northwest Africa 11670
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11670
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 154 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  CK4
Recommended:  CK4    [explanation]

This is 1 of 129 approved meteorites classified as CK4.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 27 Mar 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11670 (NWA 11670)

(Northwest Africa)

Purchased: 2017 Mar

Classification: Carbonaceous chondrite (CK4)

History: Purchased in Zagora, Morocco, by Adam Aaronson in March 2017.

Petrography: (A. Irving and S. Kuehner, UWS) Equilibrated specimen composed of separated, medium-sized chondrules (containing rounded grains of stained Cr-magnetite) set in a finer grained matrix containing Cr-magnetite, chlorapatite and pentlandite.

Geochemistry: Olivine (Fa32.1-32.4, N = 3), orthopyroxene (Fs26.7-29.7Wo0.8-1.8, N = 3), clinopyroxene (Fs11.5-14.6Wo47.6-48.3, N = 2).

Classification: CK4 chondrite.

Specimens: 21 g including one polished thin section at UWB; main mass with Aaronson.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2017 Mar
Mass (g):154
Pieces:1
Class:CK4
Shock stage:S2
Weathering grade:low
Fayalite (mol%):32.1-32.4
Ferrosilite (mol%):26.7-29.7
Wollastonite (mol%):0.8-1.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21
Type spec location:UWB
Main mass:A. Aaronson
Comments:Work name M2014; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
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 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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