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Northwest Africa 5693
Basic information Name: Northwest Africa 5693
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5693
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 70.7 g
Classification
  history:
Recommended:  Pallasite    [explanation]

This is 1 of 46 approved meteorites classified as Pallasite.   [show all]
Search for other: Metal-rich meteorites, Pallasites
Comments: Approved 31 Aug 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 5693 (NWA 5693)

(Northwest Africa)

Purchased: 2007

Classification: Pallasite

History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: Brownish, strongly altered individual lacking any fusion crust.

Petrography: The meteorite is composed of large up to 1 cm sized olivine crystals set into a matrix of iron oxides or hydroxides. Olivine is often crosscut by veins filled with brownish/reddish alteration products. No primary Fe-Ni metal was detected

Geochemistry: Olivine: Fa13.1±0.1 (Fa12.9-13.4, FeO/MnO=32-46, n=19)

Classification: Pallasite

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2007
Mass (g):70.7
Pieces:1
Class:Pallasite
Shock stage:low
Weathering grade:high
Fayalite (mol%):13.1
Classifier:A. Greshake, MNB
Type spec mass (g):14.4
Type spec location:MNB
Main mass:Fabien Kuntz
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Anthony James   
John A. Shea   
Mike Markowitz   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6423 approved meteorites from (Northwest Africa) (plus 2023 unapproved names)

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