header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 11 Oct 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 11338
Basic information Name: Northwest Africa 11338
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11338
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 382 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  CK4
Recommended:  CK4    [explanation]

This is 1 of 105 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 14 Jul 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11338 (NWA 11338)

(Northwest Africa)

Purchased: 2017 Mar

Classification: Carbonaceous chondrite (CK4)

History: Purchased by Aras Jonikas in March 2017 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Separated, well-formed chondrules (apparent diameter 500±200 μm, N = 10) containing Cr-magnetite occur in a finer grained matrix containing stained magnetite, intermediate plagioclase and minor barite.

Geochemistry: Olivine (Fa24.6-25.0, FeO/MnO = 88-102, N = 3), orthopyroxene (Fs3.5-20.0Wo1.4-1.1, N = 3), low-Ca pyroxene (Fs21.5Wo5.0), augite (Fs21.9Wo49.2).

Classification: Carbonaceous chondrite (CK4). Olivine is unusually Fe-poor for an equilibrated CK chondrite.

Specimens: 24.42 g including one polished thin section at PSF; remainder with Mr. A. Jonikas.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2017 Mar
Mass (g):381.8
Pieces:1
Class:CK4
Shock stage:S2
Weathering grade:low
Fayalite (mol%):24.6-25.0
Ferrosilite (mol%):3.5-20.0
Wollastonite (mol%):1.4-1.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):24.42
Type spec location:PSF
Main mass:A. Jonikas
Comments:Work name AJ17-5; submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 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.
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
A. Irving   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

Direct link to this page