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Northwest Africa 7840
Basic information Name: Northwest Africa 7840
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7840
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 112 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL3.6
Recommended:  LL3.6    [explanation]

This is 1 of 20 approved meteorites classified as LL3.6.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 29 May 2013
Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2012
Mass (g):112
Pieces:1
Class:LL3.6
Shock stage:S1
Weathering grade:W3
Fayalite (mol%):30.4±10.8 (0.5-30.7, n=45)
Ferrosilite (mol%):25.2±9.6 (1.4-25.5, n=47)
Classifier:A. Greshake, MNB
Type spec mass (g):21.4
Type spec location:MNB
Main mass:Tomasz Jakubowski
Comments:Well-defined chondrules. Very low metal content.; submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7354 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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