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Northwest Africa 8310
Basic information Name: Northwest Africa 8310
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8310
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 457 g
Meteoritical Bulletin:  MB 104  (2015)  LL5-7
Recommended:  LL5-7    [explanation]

This is 1 of 2 approved meteorites classified as LL5-7.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 26 Feb 2015
Writeup from MB 104:

Northwest Africa 8310 (NWA 8310)

(Northwest Africa)

Purchased: 2012 Jun

Classification: Ordinary chondrite (LL5-7)

History: Purchased in Brügg, Switzerland, in June 2012 by Marc Jost from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia consisting of angular clasts of predominantly LL7 material (completely recrystallized) with less amounts of chondrule-bearing type 5 and 6 lithologies. Minerals are olivine, orthopyroxene, subcalcic augite, augite, sodic plagioclase, chromite, troilite, chlorapatite and stained metal (composite grains of low-Ni kamacite and taenite).

Geochemistry: Olivine (Fa30.6-31.3, N = 3), orthopyroxene (Fs16.9-24.9Wo1.8-1.9, N = 3), clinopyroxene (Fs9.6-12.1Wo43.2-37.6, N = 2).

Classification: Ordinary chondrite (LL5-7) breccia.

Specimens: 21.1 g including one polished thin section at UWB. The remaining material is held by Mr. M. Jost.

Data from:
  Table 0
  Line 0:
Place of purchase:Brügg, Switzerland
Date:P 2012 Jun
Mass (g):457
Shock stage:S2
Weathering grade:W1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.1
Type spec location:UWB
Main mass:M. Jost
Comments:SJS12005; 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)
SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010)
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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     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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