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Northwest Africa 5925
Basic information Name: Northwest Africa 5925
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5925
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass:help 212 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 658 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 26 Sep 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 5925 (NWA 5925)

(Northwest Africa)

Purchased: 2009

Classification: Ureilite

History: The meteorite was bought in 2009 from a Moroccan meteorite dealer in Erfoud, Morocco.

Physical characteristics: Dark grayish individual lacking any fusion crust.

Petrography: The meteorite shows a cumulate texture of blocky, up to 1 mm sized Cr-rich olivine and pigeonite crystals. It contains some flaky graphite; olivine displays characteristic reduced rims.

Geochemistry: reduced rims in olivine: Fa3.0-11.2; Cr2O3 in ol: ~0.7 wt%

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2009
Mass (g):212
Pieces:1
Class:ureilite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):17.7±0.2 (n=21)
Ferrosilite (mol%):15.5±0.1 (n=18)
Wollastonite (mol%):7.7±0.1 (n=18)
Classifier:A. Greshake, MNB
Type spec mass (g):20.8
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; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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