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Northwest Africa 13780
Basic information Name: Northwest Africa 13780
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13780
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 460 g
Classification
  history:
Recommended:  L6-melt breccia    [explanation]

This is 1 of 58 approved meteorites classified as L6-melt breccia.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 8 Apr 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13780 (NWA 13780)

(Northwest Africa)

Purchased: 2020

Classification: Ordinary chondrite (L6, melt breccia)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania in late 2020.

Physical characteristics: Dark brownish rock without fusion crust.

Petrography: Melt breccia largely consisting of partly recrystallized shock melt regions with characteristic FeNi metal and sufide spherules. Unmelted chondritic regions are of type 6 (plagioclase grain size about 70 μm) and contain sparse relict chondrules; no metal or sulfide veins are observed.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2020
Mass (g):460
Pieces:1
Class:L6-melt breccia
Shock stage:S4
Weathering grade:W2
Fayalite (mol%):22.6±0.2 (n=4)
Ferrosilite (mol%):19.4±0.2 (n=4)
Wollastonite (mol%):1.4±0.1 (n=4)
Classifier:A. Greshake, MNB
Type spec mass (g):21.3
Type spec location:MNB
Main mass:Salamu Ali
Finder:anonymous
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 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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