NWA 10973 

Lunar Feldspathic Regolith Breccia Meteorite

3.35 GRAM COMPLETE SLICE


INCREDIBLE MELT VEINS AND COMPOSITION
METEORITE FROM THE MOON 
LOW TKW 
 

OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database

Northwest Africa 10973
Basic information
Name: Northwest Africa 10973
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10973 
Observed fall: No
Year found: 2016
Country: (Northwest Africa) 
Mass: 25 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)   

This is 1 of 100 approved meteorites classified as Lunar (feldsp. breccia). 
Approved 17 Dec 2016
Writeup
Writeup from MB 105: 

Northwest Africa 10973 (NWA 10973)

(Northwest Africa)

Purchased: 2016 Sep

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by John Higgins in September 2016 from a dealer in Nouakchott, Mauritania.

Physical characteristics: A single dark stone (25 g) lacking fusion crust. The fresh interior exhibits small white clasts within a dominant, dark-gray matrix containing sparse vesicles.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of small angular mineral clasts of anorthite, bytownite, pigeonite, olivine, orthopyroxene, Mg-merrillite, ilmenite and kamacite in a finer matrix containing sparse vesicles.

Geochemistry: Olivine (Fa40.1-47.0, FeO/MnO = 84-88, N = 3), orthopyroxene (Fs24.2-36.7Wo4.9-4.1, FeO/MnO = 52-56, N = 2), pigeonite (Fs24.8Wo14.7, FeO/MnO = 46; Fs43.4Wo17.6, FeO/MnO = 54), plagioclase (An90.3Or0.4; An81.5Or1.4; N = 2).

Classification: Lunar (feldspathic regolith breccia).

Specimens: 5.01 g including one polished slice at UWB; remainder with Mr. J. Higgins.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Nouakchott, Mauritania
Date:P 2016 Sep
Mass (g):25
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):40.1-47.0
Ferrosilite (mol%):24.2-36.7; 24.8; 43.4
Wollastonite (mol%):4.9-4.1; 14.7; 17.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):5.01
Type spec location:UWB
Main mass:J. Higgins
Comments:JH16-9; submitted by A. Irving
Institutions
   and collections
 University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall
UWB: University of Washington, 
Catalogs:
References:
Published in Meteoritical Bulletin, no. 105, in preparation (2016)


Statistics:
     This is 1 of 5536 approved meteorites from (Northwest Africa) (plus 2099 unapproved names) 

GUARANTEED AUTHENTICITY
Member of the Meteoritical Society & International Meteorite Collectors Association #9822 The authenticity of this meteorite comes with a 100% guarantee. Signed Certificate of Authenticity included. First class delivery and provenance provided. 1cm scale cube for reference purposes.
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