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Northwest Africa 1828
Basic information Name: Northwest Africa 1828
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1828
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 16.1 g
Classification
  history:
Meteoritical Bulletin:  MB 88  (2004)  Eucrite-cm
MetBase:  v. 7.1  (2006)  Eucrite-cm
Recommended:  Eucrite-cm    [explanation]

This is 1 of 54 approved meteorites classified as Eucrite-cm.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from MB 88:

Northwest Africa 1828

Morocco

Purchased 2002 September

Achondrite (eucrite, cumulate)

A complete fusion-crusted stone (16.1 g) was purchased in Agadir by a Moroccan dealer in 2002 September for N. Oakes (Oakes).  Classification and mineralogy (A. Irving and S. Kuehner, UWS): Very fractured and recrystallized, with sporadic glass-rich veinlets.  Relatively fine grained assemblage of anorthite (containing minor FeO) and exsolved pigeonite (some exhibiting deformed lamellae of augite in orthopyroxene) with minor Ti-Al-bearing chromite, troilite, ilmenite and a silica polymorph.  No grains of metal were observed.  FeO/MnO is 31.3 for orthopyroxene and 31.0 for clinopyroxene.  Specimens: type specimen, 3.5 g, and one polished thin section, UWS; main mass, Oakes.

Data from:
  MB88
  Table 4
  Line 41:
Place of purchase:Rissani
Date:P Sep 2002
Mass (g):16.1
Pieces:1
Class:Euc cm
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):3.5
Main mass:Oakes
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)
Oakes: Nelson Oakes, Route 1, House 50C, Uniondale, PA 18470, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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