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Northwest Africa 6868
Basic information Name: Northwest Africa 6868
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6868
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 747 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2790 approved meteorites (plus 1 unapproved name) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 29 Nov 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6868 (NWA 6868)

Northwest Africa

Purchased: 2011 Apr

Classification: Ordinary chondrite (LL6)

Petrography: Breccia composed of recrystallized, mostly poikiloblastic clasts containing rare relict chondrule fragments in a matrix of related debris. Constituent minerals are olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chromite, troilite and altered kamacite.

Geochemistry: Olivine Fa30.4-30.5, orthopyroxene Fs25.3-25.6Wo2.7-3.1, clinopyroxene Fs12.5-13.2Wo40.5-39.8.

Data from:
  MB100
  Table 1
  Line 1520:
Place of purchase:Agadir
Date:P 2011 Apr
Mass (g):747
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):30.4-30.5
Ferrosilite (mol%):25.3-25.6
Wollastonite (mol%):2.7-3.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):43.4
Type spec location:UWS
Main mass:J. Higgins
Comments:JH11-1; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Piotr gural100   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7320 approved meteorites from (Northwest Africa) (plus 1973 unapproved names)

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