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Northwest Africa 6821
Basic information Name: Northwest Africa 6821
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6821
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 1271 g
Classification
  history:
Recommended:  LL3    [explanation]

This is 1 of 320 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 11 Oct 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 6821 (NWA 6821)

(Northwest Africa)

Purchased: 2010

Classification: Ordinary chondrite (LL3)

History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: Light brownish rock with some fusion crust.

Petrography: The meteorite displays a chondritic texture with well defined mostly rounded and slightly packed chondrules (mean diameter about 0.6 mm) in a fine-grained dark matrix that contains sulfides and FeNi metal.

Classification: Ordinary chondrite (LL3). LL based on magnetic susceptibility.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2010
Mass (g):1271
Pieces:1
Class:LL3
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):14.6±10.1 (1.0-33.3, n=18)
Ferrosilite (mol%):10.3±6.8 (3.5-18.7, n=6)
Wollastonite (mol%):0.9±0.5 (0.4-1.5, n=6)
Magnetic suscept.:4.15
Classifier:A. Greshake, MNB
Type spec mass (g):20.4
Type spec location:MNB
Main mass:Stefan Ralew
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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