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Northwest Africa 8011
Basic information Name: Northwest Africa 8011
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8011
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 160 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  LL-melt rock
Recommended:  LL-melt rock    [explanation]

This is 1 of 9 approved meteorites classified as LL-melt rock.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 29 Jul 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8011 (NWA 8011)

(Northwest Africa)

Purchased: 2013 Jan

Classification: Ordinary chondrite (LL, melt rock)

History: Purchased by S. Haddany in Erfoud, Morocco, in January 2013.

Physical characteristics: Fresh fine grained gray stone (160 g).

Petrography: (A. Irving and S. Kuehner, UWS) Unusual specimen with a relatively fine grained, apparently igneous texture, yet there are rare partial remnant chondrules present in places. Mean grain size is ~0.5 mm, but there are many randomly-oriented, prismatic olivine and pyroxene grains (some up to 1.5 mm long). Accessory minerals are troilite (exhibiting very slight staining), chromite and taenite, but kamacite is evidently absent.

Geochemistry: Olivine (Fa29.2-29.4), orthopyroxene (Fs24.5-24.6Wo3.2-4.1), subcalcic augite (Fs15.9-18.4Wo31.9-27.0).

Classification: Ordinary chondrite (LL, melt rock). This specimen has an anomalous texture, and may represent a coarse grained melt rock related to LL chondrites.

Specimens: 20.1 g including one polished thin section at UWB. The remainder is held by Mr. S. Haddany.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2013 Jan
Mass (g):160
Pieces:1
Class:LL-melt rock
Shock stage:S6
Weathering grade:W0/1
Fayalite (mol%):29.2-29.4
Ferrosilite (mol%):24.5-24.6
Wollastonite (mol%):3.2-4.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.1
Type spec location:UWB
Main mass:S. Haddany
Comments:SH13-24; 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. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6781 approved meteorites from (Northwest Africa) (plus 2047 unapproved names)

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