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Northwest Africa 14066
Basic information Name: Northwest Africa 14066
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14066
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 129 g
Recommended:  CO3    [explanation]

This is 1 of 616 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 31 Aug 2021
Writeup from MB 110:

Northwest Africa 14066 (NWA 14066)

(Northwest Africa)

Purchased: 2020 Dec

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Tom Thiegs in December 2020 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Relatively small, well-formed glass-bearing chondrules (apparent diameter 250±160 µm, N = 22), zoned olivine fragments and very fine grained CAI are set in a fine grained matrix (~20. vol.%, orange-brown in thin section) containing, kamacite, taenite and troilite. One CAI is composed of aluminous diopside, gehlenite, perovskite and pleonaste.

Geochemistry: Olivine (Fa25.3±27.8, range Fa1.4-55.4, N = 6; Cr2O3 in ferroan olivine 0.05-0.58 wt.%, mean 0.23±0.24 wt.%, N = 4), low-Ca pyroxene (Fs22.3±18.4Wo2.0±1.7, range Fs1.2-47.1Wo0.7-4.4, N = 5), subcalcic augite (Fs17.4Wo29.8), diopside (Fs1.1Wo49.0).

Classification: Carbonaceous chondrite (CO3).

Specimens: 20.2 g including one polished thin section at UWB; remainder with Mr. T. Thiegs.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Dec
Mass (g):129
Shock stage:S2
Weathering grade:low
Fayalite (mol%):25.3±27.8
Ferrosilite (mol%):22.3±18.4
Wollastonite (mol%):2.0±1.7
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.2
Type spec location:UWB
Main mass:T. Thiegs
Comments:Work name TGT001; submitted by A. Irving
   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)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 8674 approved meteorites from (Northwest Africa) (plus 1882 unapproved names)

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