Meteoritical Bulletin: Entry for Northwest Africa 10679

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Northwest Africa 10679

Basic information

Name: Northwest Africa 10679
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10679
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 538 g

Classification
history:

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

This is 1 of 24 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 26 May 2016

Writeup

Writeup from MB 105:

Northwest Africa 10679 (NWA 10679)

(Northwest Africa)

Purchased: 2015 Oct

Classification: Ordinary chondrite (LL(L)3)

History: Purchased by Marc Jost from a Moroccan dealer at the Munich Show in October 2015.

Petrography: (A. Irving and S. Kuehner, UWS) Well formed, fairly closely-packed chondrules (apparent diameter 600±400 μm) are set in a finer grained brown matrix.

Geochemistry: Olivine (Fa_2.2-41.6; Cr₂O₃ in ferroan examples 0.08-0.21 wt.%, mean 0.13±0.05 wt.%, N = 7), orthopyroxene (Fs_6.9Wo_0.3), pigeonite (Fs_20.7Wo_14.6), subcalcic augite (Fs_25.8Wo_29.4), diopside (Fs_1.8Wo_42.1).

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

Specimens: 21.7 g including one polished thin section at UWB; remainder held by SJS.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Munich
Date:	P 2015 Oct
Mass (g):	538
Pieces:	1
Class:	LL(L)3
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	2.2-41.6
Ferrosilite (mol%):	6.9; 20.7; 25.8; 1.8
Wollastonite (mol%):	0.3; 14.6; 29.4; 42.1
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	21.7
Type spec location:	UWB
Main mass:	Space Jewels Switzerland
Comments:	SJS 16004; 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)
SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

Find references in NASA ADS:
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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Woreczko Jan & Wadi

Geography:

Coordinates:

Unknown.

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

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