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Northwest Africa 12781
Basic information Name: Northwest Africa 12781
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12781
Observed fall: No
Year found: 2019
Country: Morocco
Mass:help 34 g
Classification
  history:
Recommended:  CV3    [explanation]

This is 1 of 536 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 23 May 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 12781 (NWA 12781)

Morocco

Purchased: 2019

Classification: Carbonaceous chondrite (CV3)

History: (Ziyao Wang) Purchased by Ziyao Wang from Craig Zlimen in the US, 2019. Zlimen had bought it from a Moroccan dealer.

Physical characteristics: (Ziyao Wang) dark-yellow flat stone 34 g, without fusion crust

Petrography: (R. Bartoschewitz, Bart) well-defined chondrules (~70 vol%, 0.4-3 mm, av. 0.7 mm) of various types and AOAs set in a opaque brown matrix.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa14.2 (1.1-22.6; n=27); pyroxene Fs6.7Wo0.9 (Fs2.2-18.6Wo0.2-3.5, n=11); Cr-spinel. Kamacite Ni=4.2, Co=1.4 (n=1); taenite Ni=21-40, Co=0.3-1.0 (n=2) (all wt%); troilite; pyrrhotite. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 3.83

Classification: Carbonaceous chondrite (CV3)

Specimens: 6.9 g at Kiel on deposit, Ziyao Wang holds the main mass and 6 g with Bart.

Data from:
  MB109
  Table 0
  Line 0:
Origin or pseudonym:desert
Date:P 2019
Mass (g):34
Pieces:1
Class:CV3
Fayalite (mol%):14.2 (1.1-22.6; n=27)
Ferrosilite (mol%):6.7 (2.2-18.6; n=11)
Wollastonite (mol%):0.9 (0.2-3.5)
Magnetic suscept.:3.83
Classifier:R. Bartoschewitz
Type spec mass (g):6.9
Type spec location:Kiel
Main mass:Ziyao Wang
Finder:anonymous
Comments:working name WZ115; submitted by R. Bartoschewitz
Institutions
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Wang Ziyao         
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1488 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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