Meteoritical Bulletin: Entry for Northwest Africa 1882

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Northwest Africa 1882

Basic information

Name: Northwest Africa 1882
This is an OFFICIAL meteorite name.
Abbreviation: NWA 1882
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass: 4.44 kg

Classification
history:

Meteoritical Bulletin:	MB 88	(2004)	Mesosiderite
MetBase:	v. 7.1	(2006)	Mesosiderite-C
Recommended:			Mesosiderite-C [explanation]

This is 1 of 9 approved meteorites classified as Mesosiderite-C. [show all]
Search for other: Class C mesosiderites, Mesosiderites, and Metal-rich meteorites

Writeup

Writeup from MB 88:

Northwest Africa 1882

Western Sahara

Found 2003

Mesosiderite

Many stones totaling 4438 g were found in 2003 by an anonymous finder in Western Sahara. Classification and mineralogy (A. Greshake, MNB): several stones are partially covered by fusion crust; contains up to several cm sized metal nodules; metal is mostly kamacite with some taenite; silicate portion is dominantly Mg-rich pyroxene, Fs₂₆Wo₃ (Fs_23.4-28.7Wo_2-4.7) and plagioclase, An₉₂ (An_90.1-94.4); accessories include silica, chromite, and phosphate; oxygen isotopic composition (R. Clayton and T. Mayeda, UChi): δ¹⁸O = 3.36, δ¹⁷O = 1.42 ‰.; low degree of shock; low to medium degree of weathering. Specimens: type specimen 22 g plus one polished thin section, MNB; main mass, S. Ralew, Germany.

Data from:
  MB88
  Table 4
  Line 49:

Place of purchase:	Morocco
Date:	P 2002
Mass (g):	4438
Pieces:	many
Class:	Mes
Classifier:	A. Greshake, MNB
Type spec mass (g):	22
Main mass:	Stefan Ralew, Kunibertstraße 29, 12524 Berlin

Plots:

O isotopes:

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
UChi: University of Chicago, Chicago, IL 60637, United States (institutional address; updated 28 Feb 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Don Edwards
Meteorites Australia
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Charley Kettel
Dirk Hohmann
Franco Vignato
Mirko Graul

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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