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Northwest Africa 14474
Basic information Name: Northwest Africa 14474
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14474
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 348 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 616 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 15 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14474 (NWA 14474)

(Northwest Africa)

Purchased: 2021 Aug

Classification: Carbonaceous chondrite (CO3)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania, in August, 2021.

Physical characteristics: Dark brownish fragment without fusion crust.

Petrography: The meteorite shows a dark brownish interior and is composed of abundant small chondrules (mean diameter about 200 µm), CAIs, and mineral fragments set into a fine-grained matrix. Some chondrules are surrounded by fine-grained dust rims. Opaque phases are mostly altered metal and troilite. The meteorite is crosscut by abundant iron-hydroxide veins.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2021 Aug
Mass (g):348
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:high
Fayalite (mol%):14.6±17.6 (1.4-63.7, n=23)
Ferrosilite (mol%):2.1±1.2 (1.4-5.7, n=15)
Wollastonite (mol%):1.1±0.2 (0.8-1.8, n=15)
Classifier:A. Greshake, MNB
Type spec mass (g):22.1
Type spec location:MNB
Main mass:Salamu Ali
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. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8674 approved meteorites from (Northwest Africa) (plus 1882 unapproved names)

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