Meteoritical Bulletin: Entry for Northwest Africa 14743

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Northwest Africa 14743

Basic information

Name: Northwest Africa 14743
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14743
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass: 3.3 kg

Classification
history:

Recommended:

CVox3 [explanation]

This is 1 of 33 approved meteorites classified as CVox3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 19 Mar 2022

Writeup

help

Writeup from MB 111:

Northwest Africa 14743 (NWA 14743)

(Northwest Africa)

Purchased: 2021 Dec

Classification: Carbonaceous chondrite (CVox3)

History: Purchased jointly by Craig Zlimen and Mark Lyon in December 2021 from an Algerian dealer.

Physical characteristics: These specimens are noteworthy because of a strong preferred dimensional orientation of elongate, amoeboid to irregularly-shaped CAI.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Relatively large, well-formed, mostly spherical chondrules (apparent diameter 2170±670 µm, N = 27) are set in a fine grained matrix (~35 vol.%) containing Cr magnetite, pentlandite and rare taenite. Very fine grained CAI examined by electron microprobe analysis contain hedenbergite, aluminous diopside, and calcite.

Geochemistry: Olivine (Fa_7.1±4.9, range Fa_0.4-13.4, N = 5), low-Ca pyroxene (Fs_0.7±0.1Wo_3.3±2.2, range Fs_0.6-0.8Wo_0.9-5.2, N = 3), diopside (Fs_1.2±0.2Wo_41.2±1.1, range Fs_1.0-1.3Wo_42.0-40.4, N = 2), magnetite (Cr₂O₃ 0.3-1.6 wt.%, N = 7).

Classification: Carbonaceous chondrite (CVox3).

Specimens: 46.9 g including one polished mount and one large area polished thin section at UWB; remainder with Mr. C. Zlimen and Mr. M. Lyon.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Algeria
Date:	P 2021 Dec
Mass (g):	3300
Pieces:	3
Class:	CVox3
Shock stage:	S2
Weathering grade:	low
Fayalite (mol%):	7.1±4.9
Ferrosilite (mol%):	0.7±0.1
Wollastonite (mol%):	3.3±2.2
Classifier:	A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):	46.9
Type spec location:	UWB
Main mass:	C. Zlimen and M. Lyon
Comments:	Work name ZLI066; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 111, in preparation (2022)

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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