Meteoritical Bulletin: Entry for Northwest Africa 10699

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Northwest Africa 10699

Basic information

Name: Northwest Africa 10699
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10699
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 983 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	LL(L)3
Recommended:			LL(L)3 [explanation]

This is 1 of 22 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 9 Jul 2016

Writeup

Writeup from MB 105:

Northwest Africa 10699 (NWA 10699)

(Northwest Africa)

Purchased: 2016 Mar

Classification: Ordinary chondrite (LL(L)3)

History: Purchased by John Higgins in March 2016 from a dealer in Guelmim, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, well-formed chondrules (apparent diameter 600±200 μm) are set in a sparse matrix containing altered metal.

Geochemistry: Olivine (Fa_0.7-86.5; Cr₂O₃ in ferroan examples 0.05-0.14 wt.%, mean 0.09±0.03, N = 7), orthopyroxene (Fs_5.5Wo_0.2), pigeonite (Fs_17.2Wo_8.1), subcalcic augite (Fs_9.4Wo_29.2), augite (Fs_11.3Wo_36.2).

Classification: Ordinary chondrite (LL(L)3).

Specimens: 27 g including one polished thin section at UWB; remainder with Mr. J. Higgins.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Guelmim
Date:	P 2016 Mar
Mass (g):	983
Pieces:	1
Class:	LL(L)3
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	0.7-86.5
Ferrosilite (mol%):	5.5; 17.2; 9.4; 11.3
Wollastonite (mol%):	0.2; 8.1; 29.2; 36.2
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	27
Type spec location:	UWB
Main mass:	J. Higgins
Comments:	JH16-1; 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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Photos:

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

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 7547 approved meteorites from (Northwest Africa) (plus 1970 unapproved names)

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