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Northwest Africa 11844
Basic information Name: Northwest Africa 11844
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11844
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 35 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 492 approved meteorites classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 4 Jul 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11844 (NWA 11844)

(Northwest Africa)

Purchased: 2018

Classification: Carbonaceous chondrite (CO3)

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

Physical characteristics: Small dark-brownish individual with some fusion crust.

Petrography: The meteorite shows a dark-brownish interior and is composed of abundant small chondrules, CAIs, and mineral fragments some of which surrounded by fine-grained dust rims set into a fine-grained matrix. Chondrules have a mean diameter of about 0.2 mm; few regions show brownish staining due to terrestrial weathering.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2018
Mass (g):35
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):20.2±16.8 (2.0-49.7, n=22)
Ferrosilite (mol%):1.5±2.9 (1.3-2.8, n=18)
Wollastonite (mol%):1.6±0.9 (0.8-3.6, n=18)
Classifier:A. Greshake, MNB
Type spec mass (g):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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6325 approved meteorites from (Northwest Africa) (plus 2026 unapproved names)

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