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Northwest Africa 15457
Basic information Name: Northwest Africa 15457
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15457
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 1050 g
Classification
  history:
Recommended:  L3    [explanation]

This is 1 of 798 approved meteorites (plus 1 unapproved name) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 4 Dec 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15457 (NWA 15457)

(Northwest Africa)

Purchased: 2022

Classification: Ordinary chondrite (L3)

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

Physical characteristics: Two dark brownish fragments with some fusion crust.

Petrography: The meteorite shows a chondritic texture with sharply outlined, partly flattened packed chondrules (mean diameter about 0.8 mm) in a fine-grained dark grayish matrix that contains sulfides and rare FeNi metal.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2022
Mass (g):1050
Pieces:2
Class:L3
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):11.3±10.7 (0.6-37.6, n=21)
Ferrosilite (mol%):10.9±7.1 (1.1-20.5, n=25)
Wollastonite (mol%):0.7±0.7 (0.1-2.8, n=25)
Magnetic suscept.:4.43
Classifier:A. Greshake, MNB
Type spec mass (g):23.6
Type spec location:MNB
Main mass:Mateusz Szyszko
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. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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