Meteoritical Bulletin: Entry for Northwest Africa 10766

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Northwest Africa 10766

Basic information

Name: Northwest Africa 10766
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10766
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 660 g

Classification
history:

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

This is 1 of 718 approved meteorites (plus 1 unapproved name) classified as L3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 2 Sep 2016

Writeup

Writeup from MB 105:

Northwest Africa 10766 (NWA 10766)

(Northwest Africa)

Purchased: 2016 Feb

Classification: Ordinary chondrite (L3)

History: Purchased by Bob Falls in February 2016 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Well formed, fairly closely packed chondrules (apparent diameter 500 ± 300 μm) in a finer grained matrix containing altered metal.

Geochemistry: Olivine (Fa_5.0-51.6; Cr₂O₃ in ferroan examples 0.02-0.14 wt.%, mean 0.04±0.02 wt.%; N = 8), orthopyroxene (Fs_3.8-20.2Wo_0.4-0.7, N = 3), subcalcic augite (Fs_14.4Wo_33.2).

Classification: Ordinary chondrite (L3).

Specimens: 27.4 g including one polished thin section at UWB; remainder with Mr. R. Falls.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Tucson
Date:	P 2016 Feb
Mass (g):	660
Pieces:	1
Class:	L3
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	5.0-51.6
Ferrosilite (mol%):	3.8-20.2
Wollastonite (mol%):	0.4-0.7
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	27.4
Type spec location:	UWB
Main mass:	R. Falls
Comments:	BF16-10; 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. 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 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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