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Northwest Africa 2042
Basic information Name: Northwest Africa 2042
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2042
Observed fall: No
Year found: 2003
Country: Morocco
Mass:help 700 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Mesosiderite
MetBase:  v. 7.1  (2006)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 188 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Writeuphelp
Writeup from MB 89:

Northwest Africa 2042

Morocco

Purchased 2003 October

Mesosiderite

An uncrusted stony-iron meteorite (700 g) with a brown weathered surface was purchased in Erfoud by a Moroccan dealer for D. Gregory (Gregory) in 2003 October.  Classification and mineralogy (A. Irving and S. Kuehner, UWS): Subequal amounts of metal and silicates in a coarse grained plutonic igneous texture.  The metal has rounded grains of taenite (30 wt.% Ni) within dominant kamacite (5 wt.% Ni).  The remainder of the sample consists mainly of orthopyroxene (Fs26.1Wo2.1- Fs25.7Wo3.9; FeO/MnO = 17.8 - 20.3) and anorthitic plagioclase (An95.8) with accessory chromite, troilite and a silica polymorph.  This sample appears to be paired with NWA 1817 and NWA 1878 (see Bunch et al., 2004).  Specimens: type specimen, 20 g, UWS; main mass, Gregory.

Data from:
  MB89
  Table 7
  Line 65:
Origin or pseudonym:Morocco
Place of purchase:Erfoud
Date:Oct 2003
Mass (g):700
Pieces:1
Class:Mes
Classifier:
Type spec mass (g):20
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Gregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1405 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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