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Northwest Africa 11733
Basic information Name: Northwest Africa 11733
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11733
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 3.3 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  CM2
Recommended:  CM2    [explanation]

This is 1 of 540 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 19 Apr 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11733 (NWA 11733)

(Northwest Africa)

Purchased: 2017

Classification: Carbonaceous chondrite (CM2)

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

Physical characteristics: Small black individual without fusion crust.

Petrography: The meteorite is a brecciated chondrite consisting of small chondrules (mean apparent diameter about 0.3 mm), mineral fragments, and less abundant CAIs set into a fine-grained matrix. Chondrules and CAIs are sometimes surrounded by dust rims. Matrix minerals are phyllosilicates (as indicated by low analytical totals), carbonates, and pyrrhotite.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2017
Mass (g):3.3
Pieces:1
Class:CM2
Shock stage:S1
Weathering grade:low
Fayalite (mol%):17.0±16.4 (0.7-50.7, n=25)
Ferrosilite (mol%):1.7±0.2 (1.5-2.1, n=15)
Wollastonite (mol%):2.6±1.4 (0.8-4.5, n=15)
Classifier:A. Greshake, MNB
Type spec mass (g):0.7
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 Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
Ansgar Greshake      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7328 approved meteorites from (Northwest Africa) (plus 1973 unapproved names)

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