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Northwest Africa 13225
Basic information Name: Northwest Africa 13225
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13225
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 200 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 196 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 5 Apr 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13225 (NWA 13225)

(Northwest Africa)

Purchased: 2015

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Mohammed Hmani in 2015 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of mineral clasts of calcic plagioclase (including anorthite), orthopyroxene, pigeonite, subcalcic augite and rare olivine (< 2 vol.%) set in a finer grained matrix containing the same minerals plus kamacite, ilmenite and troilite. Rare olivine-free diabasic lithic clasts and glass fragments are present.

Geochemistry: Anorthite (An95.4-97.8Or0.1, N = 3), plagioclase (An87.0Or0.1), orthopyroxene (Fs17.6-23.3Wo2.9-3.1, FeO/MnO = 47-55, N = 2), pigeonite (Fs25.3Wo8.9, FeO/MnO = 47), subcalcic augite (Fs12.1-27.0Wo34.2-34.4, FeO/MnO = 40-57, N = 2), olivine (Fa37.1; Fa58.2; FeO/MnO = 94-99; N = 2).

Classification: Lunar (feldspathic breccia).

Specimens: 20.4 g including one polished mount at UWB; remainder with Mr. M. Hmani.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015
Mass (g):200.4
Pieces:4
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):37.1; 58.2
Ferrosilite (mol%):17.6-23.3; 25.3; 12.1-27.0
Wollastonite (mol%):2.9-3.1; 8.9; 34.2-34.4
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.4
Type spec location:UWB
Main mass:M. Hmani
Comments:Work name MH20-Q03; 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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7269 approved meteorites from (Northwest Africa) (plus 1987 unapproved names)

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