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Northwest Africa 6981
Basic information Name: Northwest Africa 6981
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6981
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 694 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  LL5-6
Recommended:  LL5-6    [explanation]

This is 1 of 57 approved meteorites classified as LL5-6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Aug 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 6981 (NWA 6981)

(Northwest Africa)

Purchased: 2011

Classification: Ordinary chondrite (LL5-6)

History: The meteorite was bought in 2011 from a local meteorite dealer in Morocco.

Physical characteristics: The grayish individual is partly covered by a pale fusion crust.

Petrography: The meteorite is a breccia composed of L5 and L6 fragments set into a fine-grained clastic groundmass. Plagioclase grain size in type 5 fragements is about 30 μm; plagioclase grain size in type 6 fragements is about 60 μm.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2011
Mass (g):694
Pieces:1
Class:LL5-6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):28.1±0.1 (n=13)
Ferrosilite (mol%):23.7±0.3 (n=24)
Wollastonite (mol%):2.1±0.3 (n=24)
Classifier:A. Greshake, MNB
Type spec mass (g):21.4
Type spec location:MNB
Main mass:Hanno Strufe
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/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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