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Northwest Africa 6940
Basic information Name: Northwest Africa 6940
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6940
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 12.8 kg
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  L5
Recommended:  L5    [explanation]

This is 1 of 7220 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 17 Jun 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 6940 (NWA 6940)

(Northwest Africa)

Purchased: 2011 Jun 17

Classification: Ordinary chondrite (L5)

Petrography: L5 chondrite clasts up to several cm with interstitial crystallized melt. The melt is clast-rich, containing mineral and small chondrite clasts. Most metal and sulfide in clasts and melt is terrestrially oxidized.

Classification: L chondritic melt breccia

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Ensisheim
Date:P 2011 Jun 17
Mass (g):12800
Pieces:1
Class:L5
Shock stage:S3
Weathering grade:W4
Fayalite (mol%):23.1±0.5 (n=26)
Ferrosilite (mol%):19.2±0.3 (n=18)
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Anonymous
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 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 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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