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Northwest Africa 14390
Basic information Name: Northwest Africa 14390
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14390
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 1994 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 642 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 5 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14390 (NWA 14390)

(Northwest Africa)

Purchased: August, 2021

Classification: Carbonaceous chondrite (CO3)

History: The meteorite was purchased from a dealer in Mauritania.

Physical characteristics: Six black rocks some of which almost completely covered with fusion crust.

Petrography: The meteorite shows an almost black interior and is predominantly composed of abundant small chondrules, CAIs, and mineral fragments set into a fine-grained matrix. Chondrules have a mean diameter of about 0.2 mm. Some components are surrounded by fine-grained dust rims. Opaque phases are metal and troilite.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P August, 2021
Mass (g):1994
Pieces:6
Class:CO3
Shock stage:S1
Weathering grade:low
Fayalite (mol%):16.7±18.0 (0.7-64.0, n=15)
Ferrosilite (mol%):1.5±0.1 (1.2-1.7, n=12)
Wollastonite (mol%):1.2±0.3 (0.9-2.2, n=12)
Magnetic suscept.:4.70
Classifier:A. Greshake, MNB
Type spec mass (g):23.8
Type spec location:MNB
Main mass:Boulaouane Taleb Ahmed
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., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Photos:
CreditPhotos
Public domain photographs:
Ansgar Greshake   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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