Meteoritical Bulletin: Entry for Northwest Africa 10071

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Northwest Africa 10071

Basic information

Name: Northwest Africa 10071
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10071
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass: 371 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	LL3
Recommended:			LL3 [explanation]

This is 1 of 444 approved meteorites classified as LL3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 3 Oct 2015

Writeup

Writeup from MB 104:

Northwest Africa 10071 (NWA 10071)

(Northwest Africa)

Purchased: 2014 Dec

Classification: Ordinary chondrite (LL3)

History: Purchased by Aras Jonikas in December 2014 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, relatively large (1.5±0.8 mm), round, glass-bearing chondrules are set in a sparse, dark matrix containing stained kamacite. Minerals are olivine, orthopyroxene, pigeonite, augite, plagioclase, cruciform chromite and troilite.

Geochemistry: Olivine (Fa_0.8-52.0; Cr₂O₃ in ferroan olivine rims 0.05-0.09 wt.%, mean 0.07±0.01 wt.%, N = 11), orthopyroxene (Fs_1.4-9.2Wo_1.0-1.1), pigeonite (Fs_19.8Wo_17.0), augite (Fs_1.1Wo_47.8).

Classification: Ordinary chondrite LL3.

Specimens: 21.1 g including one polished thin section at UWB. The remainder is held by Mr. A. Jonikas.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2014 Dec
Mass (g):	371.2
Pieces:	6
Class:	LL3
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	0.8-52.0
Ferrosilite (mol%):	1.4-9.2
Wollastonite (mol%):	1.0-1.1
Magnetic suscept.:	3.98
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	21.1
Type spec location:	UWB
Main mass:	A. Jonikas
Comments:	AJ14-16; 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)

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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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
John A. Shea
Michael S. Scherman

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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