Meteoritical Bulletin: Entry for Northwest Africa 5693

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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: 70.7 g

Classification
history:

Meteoritical Bulletin:	MB 107	(2018)	Pallasite
Recommended:			Pallasite [explanation]

This is 1 of 81 approved meteorites classified as Pallasite. [show all]
Search for other: Metal-rich meteorites, Pallasites

Comments:

Approved 31 Aug 2018

Writeup

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: Fa_13.1±0.1(Fa_12.9-13.4, 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; updated 24 Dec 2011)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Anthony James
Mike Markowitz
Wojciech Moscinski

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Crosslinks:

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Revision
history:

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