Meteoritical Bulletin: Entry for Northwest Africa 10501

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Northwest Africa 10501

Basic information

Name: Northwest Africa 10501
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10501
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 88.9 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 598 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 3 Feb 2016

Writeup

Writeup from MB 105:

Northwest Africa 10501 (NWA 10501)

(Northwest Africa)

Purchased: 2015 Sep

Classification: HED achondrite (Eucrite)

History: Purchased by Aras Jonikas in September 2015 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of diabasic eucrite clasts and related crystalline debris. Exsolved pyroxene is orange in thin section and calcic plagioclase is polycrystalline. Accessory minerals include silica polymorph, ilmenite, Ti-chromite and troilite, plus minor secondary calcite and barite.

Geochemistry: Orthopyroxene host (Fs_59.9-61.3Wo_4.5-2.7, FeO/MnO = 30-34, N = 3), clinopyroxene exsolution lamellae (Fs_28.1-28.8Wo_42.3-41.7, FeO/MnO = 28-29, N = 3).

Classification: Eucrite (diabasic breccia, shocked).

Specimens: 17.8 g including one polished thin section at PSF; remainder with Mr. A. Jonikas.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2015 Sep
Mass (g):	88.9
Pieces:	1
Class:	Eucrite
Shock stage:	high
Weathering grade:	moderate
Ferrosilite (mol%):	59.9-61.3; 28.1-28.8
Wollastonite (mol%):	4.5-2.7; 42.3-41.7
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	17.8
Type spec location:	PSF
Main mass:	A. Jonikas
Comments:	AJ15-12; submitted by A. Irving

Institutions
and collections

PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)

Catalogs:

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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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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