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Northwest Africa 1654
Basic information Name: Northwest Africa 1654
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1654
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 49 g
Classification
  history:
Meteoritical Bulletin:  MB 87  (2003)  Eucrite-unbr
MetBase:  v. 7.1  (2006)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 228 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from MB 87:

Northwest Africa 1654

Northwest Africa

Found 2002

Achondrite (eucrite)

A single stone of 49 g partly covered by fusion crust was found in 2002 by an anonymous finder in the Western Saharan desert and purchased in Zagora in 2002. Classification and mineralogy (A. Greshake, MNB; M. Kurz, Kurz): the meteorite is dominated by a recrystallized matrix of 10–20 µm-sized plagioclase, pigeonite with augite exsolution lamellae, and opaque phases; embedded into the matrix are large mineral fragments of plagioclase and Ca-pyroxene and basaltic clasts; plagioclase contains pigeonite and troilite inclusions; plagioclase composition, An88.5 (range An85.2–92.3); pigeonite composition, Fs50.3–60.6Wo5.6–15.2; augite composition, Fs29.7–47.4Wo20.2–41.5; minor phases include orthopyroxene (Fs57.9Wo4.3), silica, ilmenite, troilite, and Al-Ti-chromite. A low degree of shock and only a moderate degree of weathering. Main mass with the anonymous finder; type specimen, 11.3 g plus one polished thin section, MNB.

Data from:
  MB87
  Table 8
  Line 216:
Place of purchase:Zagorra
Date:P 2002
Mass (g):49
Pieces:1
Class:Euc ub
Classifier:A. Greshake, MNB and M. Kurz, Kurz
Type spec mass (g):11.30
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Kurz: M. Kurz, Schillerstrasse 7, D-34626 Neukirchen, Germany (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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