MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 11 Apr 2024
Search for: Search type: Search limits: Display: Publication:
Text help
Starts with
Sounds like
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 8442
Basic information Name: Northwest Africa 8442
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8442
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 2.23 kg
Meteoritical Bulletin:  MB 103  (2014)  Iron, IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 343 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 6 Jun 2014
Writeup from MB 103:

Northwest Africa 8442 (NWA 8442)

(Northwest Africa)

Purchased: June 2012

Classification: Iron meteorite (IIIAB)

Petrography: The examined polished surface has an area of about 15 cm2; an additional 30 cm2 is sawed surface with features >0.4 mm across visible. Meteorite is moderately weathered with oxidation revealing the kamacite bandwidth to be about 1.2±0.2 mm, similar to the highest in IIIAB. On the polished surface no inclusions >0.1 mm in maximum dimensions were observed; in the remaining 30 cm2 no inclusions >0.4 mm were observed.

Geochemistry: Composition: Co, 5.02 mg/g; Ni, 79.8 mg/g; Ga, 20.4 μg/g; Ge, <54 μg/g; As, 5.29 μg/g; Ir, 2.82 μg/g; and Au, 0.707 μg/g. All elements plot within IIIAB fields.

Classification: There are no known close NWA relatives; the nearest are the "Tata" irons (NWA 1430, etc.) The composition is similar to al-Ghanim (iron) and unresolvable from that of Rowton.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P June 2012
Mass (g):2231
Class:Iron, IIIAB
Classifier:J.T. Wasson, UCLA
Type spec mass (g):60
Type spec location:UCLA
Main mass:M. Cimala
Comments:Cimala 106; submitted by J.T. Wasson, M. Cimala
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
Find references in Google Scholar:

     This is 1 of 9689 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Direct link to this page