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Northwest Africa 7039
Basic information Name: Northwest Africa 7039
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7039
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 74.3 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 446 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 6 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7039 (NWA 7039)

(Northwest Africa)

Purchased: 2012 Jan

Classification: HED achondrite (Diogenite)

History: Purchased by GHupé in 2012 February from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Composed mainly of preferentially oriented tabular grains of orthopyroxene with minor olivine, clinopyroxene, anorthite, chromite, troilite and Ni-free metal. Orthopyroxene grains contain tiny inclusions of chromite (some bladed) oriented parallel to prominent cleavages.

Geochemistry: Orthopyroxene (Fs25.3-25.4Wo2.9-2.3, FeO/MnO = 29-31), clinopyroxene (Fs8.9-9.2Wo45.4-44.4, FeO/MnO = 19-22), olivine (Fa29.7, FeO/MnO = 51).

Classification: Diogenite. The foliated texture of tabular orthopyroxene grains is very unusual.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2012 Jan
Mass (g):74.3
Pieces:1
Class:Diogenite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):25.3-25.4; 8.9-9.2
Wollastonite (mol%):2.9-2.3; 45.4-44.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):14.9
Type spec location:UWB
Main mass:GHupé
Comments:M1306; 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)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7547 approved meteorites from (Northwest Africa) (plus 1970 unapproved names)

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