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Northwest Africa 14295
Basic information Name: Northwest Africa 14295
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14295
Observed fall: No
Year found: 2019
Country: Niger
Mass:help 719 g
Classification
  history:
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 263 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 12 Feb 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14295 (NWA 14295)

Niger

Purchased: 2019 Sep

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Jesper Grønne in September 2019 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Monomict breccia composed of microgabbroic clasts and related debris in a fine grained matrix. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite, low-Ti chromite, merrillite, troilite and Ni-free iron metal.

Geochemistry: Low-Ca pyroxene hosts (Fs59.3-62.2Wo1.6-3.8, FeO/MnO = 31-32, N = 5), augite exsolution lamellae (Fs25.5-26.5Wo44.1-43.1, FeO/MnO = 29-33, N = 5), plagioclase (An83.0-92.3Or0.7-0.2, N = 3).

Classification: Eucrite (monomict breccia, microgabbroic).

Specimens: 22.4 g including one polished thin section at UWB; remainder with Mr. J. Grønne.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019 Sep
Mass (g):719
Pieces:2
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):59.3-62.2; 25.5-26.5
Wollastonite (mol%):1.6-3.8; 44.1-43.1
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):22.4
Type spec location:UWB
Main mass:J. Grønne
Comments:Work name JG-052; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
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Geography:

Niger
Coordinates:Unknown.

Statistics:
     This is 1 of 94 approved meteorites from Niger (plus 4 unapproved names)

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