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Northwest Africa 13770
Basic information Name: Northwest Africa 13770
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13770
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 260 g
Classification
  history:
Recommended:  L6-melt breccia    [explanation]

This is 1 of 61 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 13770 (NWA 13770)

(Northwest Africa)

Purchased: 2019

Classification: Ordinary chondrite (L6, melt breccia)

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

Physical characteristics: Almost black rock with some patches of fusion crust.

Petrography: The meteorite consists of sparse unmelted L6-type regions with plagioclase grains about 60 µm in size surrounded by abundant partly recrystallized melt rock with characteristic FeNi metal and sufide spherules. No metal or sulfide veins are observed.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2019
Mass (g):260
Pieces:1
Class:L6-melt breccia
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):23.3±0.3 (n=4)
Ferrosilite (mol%):19.9±0.2 (n=4)
Wollastonite (mol%):1.8±0.5 (n=4)
Classifier:A. Greshake, MNB
Type spec mass (g):20
Type spec location:MNB
Main mass:Tomasz Og?aza
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 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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