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Northwest Africa 1821
Basic information Name: Northwest Africa 1821
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1821
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 40.1 g
Classification
  history:
Meteoritical Bulletin:  MB 88  (2004)  Diogenite
MetBase:  v. 7.1  (2006)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 465 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Writeuphelp
Writeup from MB 88:

Northwest Africa 1821

Morocco

Purchased 2003 January

Achondrite (diogenite)

A very fresh, complete stone with black fusion crust (40.1 g) was purchased in Rissani by a Moroccan dealer for N. Oakes (Oakes) in 2003 January.  Classification and mineralogy (A. Irving and S. Kuehner, UWS): Protogranular aggregate of orthopyroxene (Fs25.6Wo2.3 to Fs29.1Wo3.3; FeO/MnO = 29.3-31.4), containing small inclusions of troilite, magnetite and aluminous ilmenite, with sparse olivine (Fa32.9, FeO/MnO = 43.8) and minor chromite.  Specimens: type specimen, 8.1 g and one polished thin section, UWS; main mass, Oakes; additional mass, 1 g, Kurz.

Data from:
  MB88
  Table 4
  Line 34:
Place of purchase:Rissani
Date:P Jan 2003
Mass (g):40.1
Pieces:1
Class:Dio
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):8.1
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)
Kurz: M. Kurz, Schillerstrasse 7, D-34626 Neukirchen, Germany (private address)
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)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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