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Northeast Africa 041
Basic information Name: Northeast Africa 041
     This is an OFFICIAL meteorite name.
Abbreviation: NEA 041
Observed fall: No
Year found: 2023
Country: Libya
Mass:help 196.9 g
Recommended:  CV3    [explanation]

This is 1 of 624 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 18 Nov 2023
Writeup from MB 112:

Northeast Africa 041 (NEA 041)


Purchased: 2023 Apr

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Adam Aaronson in April 2023 from a dealer in Tripoli, Libya.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU.) Well-defined closely-packed, unequilibrated chondrules (apparent diameter 1240±520 µm, N = 25) containing devitrified glass together with relatively abundant irregularly-shaped, very fine-grained CAI are set in a very fine-grained matrix (~40 vol.%, opaque in thin section) containing magnetite, minor kamacite, pentlandite and intermediate plagioclase. The mineralogy of CAI is dominated by anorthite, diopside and forsterite with accessory pentlandite and rare large grains of fayalite.

Geochemistry: Olivine (Fa9.1±8.6, range Fa0.5-23.8, N = 13), low-Ca pyroxene (Fs1.7±1.7Wo1.6±1.2, range Fs0.5-4.2Wo0.9-3.3, N = 4), subcalcic augite (Fs0.6±0.1Wo32.5±4.9, range Fs0.6-0.8Wo26.8-35.8, N = 3), diopside (Fs0.7±0.4Wo41.8±2.7, range Fs80.4-1.1Wo39.1-44.5, N = 3), magnetite (Cr2O3 0.2-1.2 wt.%, N = 8).

Classification: Carbonaceous chondrite (CV3).

Specimens: 22.5 g including one polished thin section at UWB; remainder with Aaronson.

Data from:
  Table 0
  Line 0:
Place of purchase:Tripoli
Date:P 2023 Apr
Mass (g):196.9
Shock stage:S2
Weathering grade:low
Fayalite (mol%):9.1±8.6
Ferrosilite (mol%):1.7±1.7; 0.6±0.1; 0.7±0.4
Wollastonite (mol%):1.6±1.2; 32.5±4.9; 41.8±2.7
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):22.5
Type spec location:UWB
Main mass:Aaronson
Comments:Work name M2351; 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)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 26 Oct 2023)
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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     This is 1 of 1547 approved meteorites from Libya (plus 23 unapproved names) (plus 2 impact craters)

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