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Northwest Africa 13212
Basic information Name: Northwest Africa 13212
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13212
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 18.7 g
Classification
  history:
Recommended:  CK6    [explanation]

This is 1 of 80 approved meteorites classified as CK6.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 5 Apr 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13212 (NWA 13212)

(Northwest Africa)

Purchased: 2019

Classification: Carbonaceous chondrite (CK6)

History: The meteorite was purchased from a Morrocan dealer at the mineral show in Hamburg, Germany.

Physical characteristics: Dark grayish to greenish individual with some fusion crust.

Petrography: The meteorite displays a greyish to dark greenish interior and is predominantly composed of recrystallized Fe-rich olivine dominated matrix with some scattered well defined chondrules. Cr-rich magnetite is abundant. More minor phases include intermediate plagioclase, low-Ca pyroxene, Ca-pyroxene, and troilite; metal was not found.

Geochemistry: olivine: Fa28.5±0.2 (FeO/MnO=94±11, n=12); low-Ca pyroxene: Fs25.3±0.2Wo0.7±0.1, n=6; Ca-pyroxene: Fs9.4±0.5Wo44.5±0.9, n=15

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Hamburg, Germany
Date:P 2019
Mass (g):18.7
Pieces:1
Class:CK6
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):28.5
Ferrosilite (mol%):25.3; 9.4
Wollastonite (mol%):0.7; 44.5
Classifier:A. Greshake, MNB
Type spec mass (g):4.9
Type spec location:MNB
Main mass:Hanno Strufe
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 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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