Meteoritical Bulletin: Entry for Northwest Africa 10144

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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: 53.5 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	Eucrite-br
Recommended:			Eucrite-br [explanation]

This is 1 of 237 approved meteorites classified as Eucrite-br. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 11 Jun 2015

Writeup

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 (Fs_60.2-61.4Wo_3.4-2.5, FeO/MnO = 34, N = 2), clinopyroxene exsolution lamellae (Fs_26.1-26.2Wo_43.3-43.4, 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:
  MB104
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P 2015 Jan
Mass (g):	53.5
Pieces:	1
Class:	Eucrite-br
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

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)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)

Catalogs:

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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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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