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Northwest Africa 6955
Basic information Name: Northwest Africa 6955
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6955
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 280 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2749 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 21 Feb 2012
Writeuphelp
Writeup from MB 100:

Northwest Africa 6955 (NWA 6955)

(Northwest Africa)

Purchased: Aug 2011

Classification: Ordinary chondrite (LL6)

Petrography: Very fresh breccia composed of angular, highly recrystallized chondrite clasts containing rare remnant partial chondrules. Olivine orthopyroxene, clinopyroxene with accessory chromite, chlorapatite, kamacite (slightly stained) and troilite.

Geochemistry: Olivine (Fa30.3-30.7), orthopyroxene (Fs24.3-24.7Wo1.9-2.0), clinopyroxene (Fs10.1-10.3Wo43.4±0.0).

Data from:
  MB100
  Table 1
  Line 1555:
Place of purchase:Erfoud
Date:P Aug 2011
Mass (g):280
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):30.3-30.7
Ferrosilite (mol%):24.3-24.7
Wollastonite (mol%):1.9-2.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWS
Main mass:G. Fujihara
Comments: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)
Jean-Michel Masson   
Russ Opdahl         
steve sutton   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6877 approved meteorites from (Northwest Africa) (plus 2037 unapproved names)

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