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Northwest Africa 15142
Basic information Name: Northwest Africa 15142
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15142
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 58 g
Classification
  history:
Recommended:  LL6    [explanation]

This is 1 of 2861 approved meteorites (plus 2 unapproved names) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Jul 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15142 (NWA 15142)

(Northwest Africa)

Purchased: 2022

Classification: Ordinary chondrite (LL6)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania, in May, 2022.

Physical characteristics: Brownish fragment without fusion crust.

Petrography: Chondritic breccia with up to 5 mm sized mostly angular to subrounded LL6 fragments in LL6 matrix. Metal is completely weathered to oxides and hydroxides. Plagioclase grains size is about 60 µm. Contains shock melt veins.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2022
Mass (g):58
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):31.4±0.3 (n=5)
Ferrosilite (mol%):25.2±0.3 (n=5)
Wollastonite (mol%):1.7±0.3 (n=5)
Classifier:A. Greshake, MNB
Type spec mass (g):12.9
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. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8777 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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