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Northeast Africa 039
Basic information Name: Northeast Africa 039
     This is an OFFICIAL meteorite name.
Abbreviation: NEA 039
Observed fall: No
Year found: 2023
Country: Libya
Mass:help 1536 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  Lunar (basalt)
Recommended:  Lunar (basalt)    [explanation]

This is 1 of 28 approved meteorites classified as Lunar (basalt).   [show all]
Search for other: Lunar meteorites
Comments: Approved 21 Aug 2023
Writeuphelp
Writeup from MB 112:

Northeast Africa 039 (NEA 039)

Libya

Purchased: 2023 Mar

Classification: Lunar meteorite (basalt)

History: Found in Libya and purchased by Mark Lyon in March 2023 from a dealer in Zagora, Morocco and now co-owned by Mark Lyon, Steve Jurvetson and Brian Caress.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) This very fresh specimen has an ophitic igneous texture and is composed of stubby prismatic grains of zoned olivine and pigeonite (mean grainsize ~0.5 mm) and maskelynite laths (up to 1 mm long) together with accessory blade-like ilmenite, chromite, troilite, fayalite and silica polymorph. Shock pockets composed of "swirly-textured" glass (mottled pale orange to beige in thin section and most containing a single large vesicle) plus some thin cross-cutting shock veinlets are present.

Geochemistry: Olivine (Fa38.6-45.3, FeO/MnO = 81-106, N = 9), pigeonite (Fs38.1-80.6Wo11.0-22.4, FeO/MnO = 51-85, N = 15), maskelynite (An85.8-87.4Or0.7-0.3, N = 3).

Classification: Lunar (mare basalt, unbrecciated).

Specimens: 21.4 g including one polished thin section and one polished mount at UWB; remainder held jointly by Mr. M. Lyon, Mr. S. Jurvetson and Mr. B. Caress.

Data from:
  MB112
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2023 Mar
Mass (g):1536
Pieces:1
Class:Lunar (basalt)
Shock stage:high
Weathering grade:low
Fayalite (mol%):38.6-45.3
Ferrosilite (mol%):38.1-80.6
Wollastonite (mol%):11.0-22.4
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):21.4
Type spec location:UWB
Main mass:M. Lyon/S. Jurvetson/B. Caress
Comments:Work name RC174.1; 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)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Libya
Coordinates:Unknown.

Statistics:
     This is 1 of 1550 approved meteorites from Libya (plus 23 unapproved names) (plus 2 impact craters)

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