Meteoritical Bulletin: Entry for Northwest Africa 8666

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Northwest Africa 8666

Basic information

Name: Northwest Africa 8666
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8666
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass: 290 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	LL(L)3
Recommended:			LL(L)3 [explanation]

This is 1 of 23 approved meteorites classified as LL(L)3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 18 Dec 2015

Writeup

Writeup from MB 104:

Northwest Africa 8666 (NWA 8666)

(Northwest Africa)

Purchased: 2014 May

Classification: Ordinary chondrite (LL(L)3)

History: Purchased by John Higgins in May 2014 from a dealer in Laayoune, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules occur in a finer grained, metal-bearing matrix.

Geochemistry: Olivine (Fa_0.8-42.3; Cr₂O₃ in ferroan olivine 0.08-0.15 wt.%, N = 7), orthopyroxene (Fs_1.7-18.3Wo_0.6-3.5, N = 3), subcalcic augite (Fs_8.5-27.1Wo_30.0-29.1, N = 2). Magnetic susceptibility log χ (× 10^-9 m³/kg) = 4.35.

Classification: Ordinary chondrite LL(L)3.

Specimens: 23.5 g including one polished thin section at UWB. The remainder is held by J. Higgins.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Laayoune
Date:	P 2014 May
Mass (g):	290
Pieces:	1
Class:	LL(L)3
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	0.8-42.3
Ferrosilite (mol%):	1.7-18.3
Wollastonite (mol%):	0.6-3.5
Magnetic suscept.:	4.35
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	23.5
Type spec location:	UWB
Main mass:	J. Higgins
Comments:	JH14-12; 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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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8136 approved meteorites from (Northwest Africa) (plus 1942 unapproved names)

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