Meteoritical Bulletin: Entry for Northwest Africa 10854

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Northwest Africa 10854

Basic information

Name: Northwest Africa 10854
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10854
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 741 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	L3
Recommended:			L3 [explanation]

This is 1 of 848 approved meteorites (plus 2 unapproved names) classified as L3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 27 Sep 2016

Writeup

Writeup from MB 105:

Northwest Africa 10854 (NWA 10854)

(Northwest Africa)

Purchased: 2016 May

Classification: Ordinary chondrite (L3)

History: Purchased by Aras Jonikas in May 2016 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, well-formed chondrules (apparent diameter 700±400 μm) are set in a sparse fine grained, black matrix.

Geochemistry: Olivine (Fa_0.6-47.0, Cr₂O₃ in ferroan examples 0.06-0.19 wt.%, mean 0.13±0.05 wt.%, N = 8), orthopyroxene (Fs_2.5-20.9Wo_0.4-1.8, N = 3), subcalcic augite (Fs_23.3Wo_33.8), augite (Fs_15.1Wo_38.4). Magnetic susceptibility log χ (× 10^-9 m³/kg) = 4.81.

Classification: Ordinary chondrite (L3).

Specimens: 21.82 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 2016 May
Mass (g):	741
Pieces:	1
Class:	L3
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	0.6-47.0
Ferrosilite (mol%):	2.5-20.9
Wollastonite (mol%):	0.4-1.8
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	21.82
Type spec location:	PSF
Main mass:	A. Jonikas
Comments:	AJ16-16; 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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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Denis gourgues

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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