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Northwest Africa 1653
Basic information Name: Northwest Africa 1653
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1653
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 376 g
Classification
  history:
Meteoritical Bulletin:  MB 87  (2003)  Howardite
MetBase:  v. 7.1  (2006)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 398 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Writeuphelp
Writeup from MB 87:

Northwest Africa 1653

Northwest Africa

Found 2002

Achondrite (howardite)

A single stone of 376 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): basaltic eucrite and diogenitic clasts are set into a clastic matrix; dark impact melt fragments are abundant and often show quench textures with radial or skeletal shaped aggregates; eucrite clasts contain plagioclase, An91.9 (range An86.2–95.7); pigeonite, Fs35.8–59.2Wo5.8–17.6 and augite, Fs29.9–55.6Wo22.8– 31.1; minor phases include silica, chromite, and ilmenite; diogenite clasts are composed mainly of orthopyroxene, Fs25– 41.4Wo3.1–4.9 and olivine, Fa27.7 (range Fa26.2–30.2); chromite and ilmenite are among the accessory phases; low degree of shock; low degree of weathering. Main mass with anonymous finder; type specimen 21.0 g plus two polished thin sections, MNB.

Data from:
  MB87
  Table 8
  Line 215:
Place of purchase:Zagorra
Date:P 2002
Mass (g):376
Pieces:1
Class:How
Classifier:A. Greshake, MNB and M. Kurz, Kurz
Type spec mass (g):21
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)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7820 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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