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Northwest Africa 10465
Basic information Name: Northwest Africa 10465
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10465
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 574 g
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 355 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 24 Jan 2016
Writeup from MB 105:

Northwest Africa 10465 (NWA 10465)

(Northwest Africa)

Purchased: 2015 Jul

Classification: HED achondrite (Eucrite, polymict)

History: Found in far-western Algeria in early June 2015.

Physical characteristics: One piece with weathered exterior. A sawn surface shows a fragmental breccia with gabbroic, pyroxene-rich, and feldspar-rich clasts set in a very fine-grained, light gray groundmass.

Petrography: (C. Agee, UNM) This meteorite consist of at least two distinct eucrite lithologies; the dominant lithology is a basaltic eucrite, and a minor lithology is a cumulate eucrite. Many domains consist of fragmental to cataclastic mineral grains. Accessory silica, ilmenite, and troilite were observed.

Geochemistry: (C. Agee and N. Muttik, UNM) Pigeonite Fs55.1±3.8Wo8.3±3.2, Fe/Mn=32±1, n=11; high-Ca pyroxene Fs36.0±7.6Wo36.0±7.6, Fe/Mn=32±2, n=2; Cumulate eucrite low-Ca pyroxene Fs37.3Wo2.4, Fe/Mn=36, n=1; plagioclase An89.7±0.9, n=2.

Classification: Polymict eucrite

Specimens: 24.9 g including a probe mount on deposit at UNM, DPitt holds the main mass.

Data from:
  Table 0
  Line 0:
Date:P 2015 Jul
Mass (g):573.6
Shock stage:high
Weathering grade:medium
Ferrosilite (mol%):55.1±3.8, 36.0±7.6, 37.3
Wollastonite (mol%):8.3±3.2, 36.0±7.6, 2.4
Classifier:C. Agee, UNM
Type spec mass (g):24.9
Type spec location:UNM
Main mass:DPitt
Comments:Field name MAC 153; submitted by C. Agee, UNM
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 7820 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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