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Northwest Africa 7466
Basic information Name: Northwest Africa 7466
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7466
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 1216 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 274 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 3 Jun 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7466 (NWA 7466)

(Northwest Africa)

Purchased: 2012 Jul

Classification: HED achondrite (Eucrite, monomict)

History: Purchased from a Moroccan dealer by Gary Fujihara and Adam Bates in July 2012.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh monomict breccia composed of medium-grained basaltic eucrite clasts. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite, chromite and troilite.

Geochemistry: Orthopyroxene Fs61.1-62.3Wo1.7; FeO/MnO = 31), clinopyroxene exsolution lamellae (Fs26.9-27.6Wo43.2-41.8; FeO/MnO = 28-29).

Classification: Eucrite (monomict breccia)

Specimens: 27.9 g of sample and one polished thin section are on deposit at UWB. The remaining material is held jointly by Gary Fujihara and Adam Bates.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2012 Jul
Mass (g):1216
Pieces:25
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):61.1-62.3; 26.9-27.6
Wollastonite (mol%):1.7; 43.2-41.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):27.9
Type spec location:UWB
Main mass:G. Fujihara/A. Bates
Comments:GF12-9; submitted by A. Irving
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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
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Photos:
CreditPhotos
Public domain photographs:
Gary Fujihara   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9370 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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