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Northwest Africa 10144
Basic information Name: Northwest Africa 10144
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10144
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 53.5 g
Meteoritical Bulletin:  MB 104  (2015)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 218 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 11 Jun 2015
Writeup from MB 104:

Northwest Africa 10144 (NWA 10144)

(Northwest Africa)

Purchased: 2015 Jan

Classification: HED achondrite (Eucrite, brecciated)

History: Purchased by Darryl Pitt in January 2015 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh breccia consisting of closely packed clasts of mostly very fine-grained basaltic eucrite lithologies with variably plumose to intersertal to ophitic to microgranoblastic textures. Minerals are calcic plagioclase, exsolved pigeonite, silica polymorph, ilmenite, chromite and troilite.

Geochemistry: Host orthopyroxene (Fs60.2-61.4Wo3.4-2.5, FeO/MnO = 34, N = 2), clinopyroxene exsolution lamellae (Fs26.1-26.2Wo43.3-43.4, FeO/MnO = 31-34, N = 2).

Classification: Eucrite (genomict breccia, partly granoblastic).

Specimens: 14.2 g including one polished thin section at UWB. The remainder is held by DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015 Jan
Mass (g):53.5
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):60.2-61.4; 26.1-26.2
Wollastonite (mol%):3.4-2.5; 43.3-43.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):14.2
Type spec location:UWB
Main mass:DPitt
Comments:MAC 99; submitted by A. Irving
   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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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