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Northwest Africa 2307
Basic information Name: Northwest Africa 2307
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2307
Observed fall: No
Year found: 2004
Country: Morocco
Mass:help 1905 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Eucrite
MetBase:  v. 7.1  (2006)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 571 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from MB online:

Northwest Africa 2307

Northwest Africa

Found 2004 January

Achondrite (polymict eucrite)

A single stone of 1905 g was found by an anonymous finder in Morocco. Classification and mineralogy (A. Greshake): lithic and mineral clasts are set into a fine-grained clastic matrix; lithic clasts include basaltic clasts and dark impact melt fragments; mineral clasts are dominantly large plagioclase and augite with pigeonite exsolution lamellae; plagioclase, An89.7 (range An81.3-94.9); Ca-pyroxene, Fs23.1-55Wo6.3-43.9; minor phases include orthopyroxene (Fs57.1), silica, Ti-rich chromite, and ilmenite; moderate degree of shock; low degree of weathering. Main mass with anonymous finder; type specimen 44.0 g plus two polished thin sections MNB.

Data from:
  MB89
  Table 7
  Line 190:
Origin or pseudonym:Morocco
Date:2004
Mass (g):1905
Pieces:1
Class:Euc
Ferrosilite (mol%):23.1-55
Classifier:A. Greshake, MNB
Type spec mass (g):44
Main mass:JNMC
Comments:Wo6.3-43.9; Plag An81.3-94.9
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
JNMC: jnmczurich, P.O. Box 208, CH-8155 Niederhasli, Switzerland; Website (private address; updated 4 Feb 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Auricular   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1967 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater)

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