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Northwest Africa 11462
Basic information Name: Northwest Africa 11462
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11462
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 15 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  CM2
Recommended:  CM2    [explanation]

This is 1 of 541 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 3 Nov 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11462 (NWA 11462)

(Northwest Africa)

Purchased: 2017

Classification: Carbonaceous chondrite (CM2)

History: The meteorite was bought from a Moroccan meteorite dealer at the meteorite fair in Ensisheim, France.

Physical characteristics: Dark grayish to black individual with desert varnished surface.

Petrography: Carbonaceous chondrite composed of chondrules (average apparent size 220 μm), CAIs, mineral fragments and their respective pseudomorphs mostly surrounded by fine-grained dust rims and all set into abundant fine Fe-rich matrix. Carbonates, sulfides and pyhllosilicates (as indicated by low analytical totals) are most abundant matrix phases.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Ensisheim, France
Date:P 2017
Mass (g):15
Pieces:1
Class:CM2
Shock stage:S1
Weathering grade:low
Fayalite (mol%):25.7±19.8 (0.7-67.0, n=48)
Ferrosilite (mol%):1.3±0.8 (0.8-3.5, n=25)
Wollastonite (mol%):1.4±0.6 (1.0-3.2, n=25)
Classifier:A. Greshake, MNB
Type spec mass (g):3.1
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
Comments: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 Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Photos:
CreditPhotos
Public domain photographs:
Ansgar Greshake      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7377 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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