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Northwest Africa 12895
Basic information Name: Northwest Africa 12895
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12895
Observed fall: No
Year found: 2019
Country: Morocco
Mass:help 184.5 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 628 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 23 Feb 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 12895 (NWA 12895)

Morocco

Purchased: 2019

Classification: Carbonaceous chondrite (CO3)

History: (Ziyao Wang) Purchased by Ziyao Wang from Fayssal Mezgouri in Agadir, Morocco, Jun 2019.

Physical characteristics: (Ziyao Wang) Brown cylindrical stone of 184.5 g without fusion crust

Petrography: (R. Bartoschewitz, Bart) well defined chondrules up to 0.5 mm (av. ~0.2 mm, n=30), CAIs and AOAs up to 0.7 mm set in fine-grained brown matrix with abundant metal grains of ~2-30 µm (a few larger irregular aggregates reach 0.3 mm).

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa24.7 (Fa1.9-38.2; Fe/Mn=120±59, n=19); pyroxene Fs3.7Wo1.2±0.7 (Fs0.9-20.5; n=12); chromite CRAL=70, FFM=89 (n=1). Kamacite Ni=5.6, Co=2.0 (n=3); taenite Ni=30-46, Co=0.5-1.5 (n=4). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.04

Classification: Carbonaceous chondrite (CO3)

Specimens: 13.1 g at Kiel and 7.2 g at Halle on deposit, Ziyao Wang holds the main mass and 27 g with Bart.

Data from:
  MB112
  Table 0
  Line 0:
Origin or pseudonym:desert
Place of purchase:Agadir, Morocco
Date:P 2019
Mass (g):184.5
Pieces:1
Class:CO3
Fayalite (mol%):24.7 (1.9-38.2; n=19)
Ferrosilite (mol%):3.7 (0.9-20.5; n=12)
Wollastonite (mol%):1.2±0.7
Magnetic suscept.:4.04
Classifier:R. Bartoschewitz
Type spec mass (g):20.3
Type spec location:Kiel
Main mass:Ziyao Wang
Finder:anonymous
Comments:working name WZ140; 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. 112, in preparation (2023)
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)
Ziyao Wang      
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1972 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater)

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