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Northwest Africa 13556
Basic information Name: Northwest Africa 13556
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13556
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 286 g
Classification
  history:
Recommended:  LL6    [explanation]

This is 1 of 2797 approved meteorites (plus 1 unapproved name) 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 12 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13556 (NWA 13556)

(Northwest Africa)

Purchased: 2020

Classification: Ordinary chondrite (LL6)

History: The meteorite was found near Dakhla, Western Sahara, and purchased from the main mass holder from a Morrocan dealer.

Physical characteristics: Dark brownish fragment without fusion crust.

Petrography: The plagioclase grain size is about 70 µm.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020
Mass (g):286
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):30.9±0.2 (n=6)
Ferrosilite (mol%):25.1±0.2 (n=6)
Wollastonite (mol%):2.3±0.2 (n=6)
Classifier:A. Greshake, MNB
Type spec mass (g):34.1
Type spec location:MNB
Main mass: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. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7547 approved meteorites from (Northwest Africa) (plus 1970 unapproved names)

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