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Northwest Africa 8357
Basic information Name: Northwest Africa 8357
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8357
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 304 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  L3
Recommended:  L3    [explanation]

This is 1 of 709 approved meteorites classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 29 Jan 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 8357 (NWA 8357)

(Northwest Africa)

Purchased: 2014 Feb

Classification: Ordinary chondrite (L3)

History: Purchased by Matthew Martin in February 2014 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, spheroidal chondrules (1.5±0.8 mm) together with some angular, recrystallized clasts are set in a finer grained matrix.

Geochemistry: Olivine, Fa3.2-34.1; Cr2O3 in ferroan olivine = 0.03-0.08 wt.%, mean 0.05±0.02 wt.%, N = 7; orthopyroxene, Fs1.6-20.8Wo0.6-2.0, N = 3; subcalcic augite, Fs4.1Wo16.4; augite,Fs8.0-8.2Wo45.9-46.3.

Classification: Ordinary chondrite (L3).

Specimens: 21 g including one polished thin section at UWB. The remainder is held by Mr. M. Martin.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2014 Feb
Mass (g):304
Pieces:1
Class:L3
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):3.2-34.1
Ferrosilite (mol%):1.6-20.8
Wollastonite (mol%):0.6-2.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21
Type spec location:UWB
Main mass:M. Martin
Comments:MM14-2; 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
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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