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Northwest Africa 5685
Basic information Name: Northwest Africa 5685
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5685
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 1035 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 510 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 2 Feb 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 5685 (NWA 5685)

(Northwest Africa)

Purchased: 2008

Classification: Ureilite

History: The meteorite was bought from a Moroccan meteorite dealer in 2008.

Petrography: The meteorite displays a characteristic cumulate texture with blocky up to 2 mm sized olivine and pigeonite grains. Olivine shows reduced rims and carbon occurs as graphite flakes.

Geochemistry: Olivine reduced rims: Fa8.9-14.3; olivine contains about 0.7 wt% Cr2O3

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2008
Mass (g):1035
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):21.8
Ferrosilite (mol%):18.6
Wollastonite (mol%):8.6
Classifier:A. Greshake, MNB
Type spec mass (g):21.4
Type spec location:MNB
Main mass:Beat Booz
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. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Beat Booz   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6877 approved meteorites from (Northwest Africa) (plus 2037 unapproved names)

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