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Northwest Africa 6569
Basic information Name: Northwest Africa 6569
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6569
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 340 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  L-melt breccia¬†
Recommended:  L-melt breccia    [explanation]

This is 1 of 28 approved meteorites classified as L-melt breccia.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 24 Oct 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6569 (NWA 6569)

(Northwest Africa)

Purchased: 2010 Dec

Classification: Ordinary chondrite (L, melt breccia)

Petrography: Portions of this specimen consist of fairly well-formed chondrules (mostly BO types), but there are regions of much finer grained material (macroscopically "milky" gray). The fine grained regions consist of olivine, orthopyroxene, kamacite, chromite and troilite; sparse large metal grains with ragged shapes and plessitic cores.

Data from:
  MB100
  Table 1
  Line 1421:
Place of purchase:Temara
Date:P 2010 Dec
Mass (g):340
Pieces:1
Class:L-melt breccia
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):24.0-25.0
Ferrosilite (mol%):20.4-20.6; 7.6-9.0
Wollastonite (mol%):1.3-1.4; 44.8-41.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWS
Main mass:Aaronson
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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6759 approved meteorites from (Northwest Africa) (plus 2047 unapproved names)

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