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Northwest Africa 12317
Basic information Name: Northwest Africa 12317
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12317
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 397 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 526 approved meteorites classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 21 Sep 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12317 (NWA 12317)

(Northwest Africa)

Purchased: April 2017

Classification: Carbonaceous chondrite (CO3)

History: Discovered by an anonymous person an purchased in Erfoud in April 2017

Petrography: (R. Bartoschewitz, Bart) Chondrules (avaerage ~ 200 µm), chondrule fragments, and CAIs are embedded in a fine-grained brownish matrix (about 20 vol%). Magnetic susceptibility logc=4.10.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Random measurements of olivine grains revealed Fa37.8±2.9 (Fa29.2-44.8), n=24; feldspar An60Ab38 (n=1). Taenite Ni=38.4, Co=0.4 wt.-% (n=1).

Classification: Carbonaceous chondrite (CO3, S1)

Specimens: 20.2 g on deposit at Kiel, main mass anonymous

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P April 2017
Mass (g):397
Pieces:2
Class:CO3
Shock stage:S1
Fayalite (mol%):37.8±2.9 (n=24)
Magnetic suscept.:4.10
Classifier:R. Bartoschewitz
Type spec mass (g):20.2
Type spec location:Kiel
Main mass:anonymous
Finder:anonymous
Comments:working name K370; 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. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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