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Northwest Africa 10686
Basic information Name: Northwest Africa 10686
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10686
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 444 g
Meteoritical Bulletin:  MB 105  (2016)  L3
Recommended:  L3    [explanation]

This is 1 of 726 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 26 Nov 2016
Writeup from MB 105:

Northwest Africa 10686 (NWA 10686)

(Northwest Africa)

Purchased: 2016 Mar

Classification: Ordinary chondrite (L3)

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

Petrography: (A. Irving and S. Kuehner, UWS) Fairly closely packed, well-formed chondrules (apparent diameter 400±300 μm, but some up to 6 mm) occur in a relatively coarse grained matrix containing altered metal. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.24.

Geochemistry: Olivine (Fa0.6-43.6; Cr2O3 in ferroan examples 0.04-0.31 wt.%, mean 0.10±0.09, N = 8), orthopyroxene (Fs0.6-18.8Wo1.0-4.3), subcalcic augite (Fs14.8Wo26.2), diopside (Fs0.6Wo45.6).

Classification: Ordinary chondrite (L3).

Specimens: 36 g including one polished thin section at UWB; remainder with Mr. J. Higgins.

Data from:
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2016 Mar
Mass (g):444
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.6-43.6
Ferrosilite (mol%):0.6-18.8
Wollastonite (mol%):1.0-4.3
Magnetic suscept.:4.24
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):36
Type spec location:UWB
Main mass:J. Higgins
Comments:JH16-5; submitted by A. Irving
   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)
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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     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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