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Northwest Africa 7465
Basic information Name: Northwest Africa 7465
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7465
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 487 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 254 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 7465 (NWA 7465)

(Northwest Africa)

Purchased: 2012 July

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) Very fresh monomict breccia composed of closely-packed, fine-grained basaltic eucrite clasts. This specimen is relatively well-annealed, and contains discrete grains of orthopyroxene and clinopyroxene, with anorthitic plagioclase, ilmenite, Ti-rich chromite and troilite.

Geochemistry: Orthopyroxene (Fs58.6-61.3Wo5.1-1.7; FeO/MnO = 34-35), clinopyroxene (Fs25.3-25.7Wo44.0-44.2; FeO/MnO = 33-34).

Classification: Eucrite (monomict breccia)

Specimens: 27.2 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 July
Mass (g):487
Pieces:15
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):58.6-61.3; 25.3-25.7
Wollastonite (mol%):5.1-1.7; 44.0-44.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):27.2
Type spec location:UWB
Main mass:G. Fujihara, A. Bates
Comments:GF12-8; 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
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Gregor H.   
Public domain photographs:
Gary Fujihara      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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