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Northwest Africa 12626
Basic information Name: Northwest Africa 12626
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12626
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 47 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 11 Jun 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12626 (NWA 12626)

(Northwest Africa)

Purchased: 2018 Nov

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Craig Zlimen in November 2018 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Small, well-formed chondrules (apparent diameter 230±120 µm, N = 22), minerals fragments, AOA and very fine grained CAI are set in a fine grained matrix (~30 vol.%, orange-brown in thin section).

Geochemistry: Olivine (Fa9.3±11.5 (0.3-27.4), Cr2O3 in ferroan examples 0.04-0.08 wt.%, N = 5), orthopyroxene, Fs2.1±2.7Wo1.6±0.6 (Fs0.8-6.1Wo1.1-2.3, N = 4), pigeonite (Fs2.5Wo5.3), subcalcic augite (Fs1.2Wo32.4), diopside (Fs0.9Wo40.9), hedenbergite (Fs51.5Wo46.4), plagioclase (An66.7-73.8Or0.8-0.2, N = 2).

Classification: Carbonaceous chondrite (CO3).

Specimens: 9.5 g including one polished thin section at UWB; remainder with Mr. C. Zlimen.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2018 Nov
Mass (g):47
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):0.3-27.4
Ferrosilite (mol%):0.8-6.1
Wollastonite (mol%):1.1-2.3
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):9.5
Type spec location:UWB
Main mass:C. Zlimen
Comments:Work name ZLI08; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
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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