header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 30 Nov 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:
Include past classifications in search
Limit to approved meteorite names
Search text:  
Northwest Africa 4703
Basic information Name: Northwest Africa 4703
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 4703
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 114 g
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  Iron, IAB-sLL
Recommended:  Iron, IAB-sLL    [explanation]

This is 1 of 34 approved meteorites classified as Iron, IAB-sLL.   [show all]
Search for other: IAB complex irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 21 Sep 2010
Writeuphelp
Writeup from MB 99:

Northwest Africa 4703 (NWA 4703)

(Northwest Africa)

Purchased: 2007

Classification: Iron meteorite (IAB-sLL)

Petrography: Etched surface is curious: some bands mirror-like in their brightness, others dull. Differences depend on crystallographic orientation because dull crosses bright. Abundant Neumann lines. One 3x9 mm FeS inclusion. Silicates and schreibersite not identified.

Geochemistry: Co (mg/g) 4.79, Ni (mg/g) 85.2, Ga (µg/g) 76.9, Ge (µg/g) 269, As (µg/g) 16.6, Ir (µg/g) 2.78, Au (µg/g) 1.82.

Submitter: J. T. Wasson, UCLA.

Data from:
  MB99
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2007
Mass (g):114
Pieces:1
Class:Iron, IAB-sLL
Classifier:Wasson
Type spec mass (g):22
Type spec location:UCLA
Main mass:Birdsell
Comments:Submitted by Wasson
Institutions
   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)
Birdsell: Arizona Skies Meteorites, P.O. Box 2412, Flagstaff, AZ 86003, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

Direct link to this page