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Northeast Africa 032
Basic information Name: Northeast Africa 032
     This is an OFFICIAL meteorite name.
Abbreviation: NEA 032
Observed fall: No
Year found: 2019
Country: Libya
Mass:help 219 g
Classification
  history:
Recommended:  LL4    [explanation]

This is 1 of 387 approved meteorites classified as LL4.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 20 Dec 2021
Writeuphelp
Writeup from MB 110:

Northeast Africa 032 (NEA 032)

Libya

Purchased: 2019 Apr

Classification: Ordinary chondrite (LL4)

History: Purchased by Mbark Arjdal in April 2019 from a Libyan dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed chondrules containing devitrified glass and rare fresh glass are set in a matrix containing troilite, stained kamacite, augite, chromite and chlorapatite.

Geochemistry: Olivine (Fa29.4±0.7, range Fa28.7-30.6, N = 6), low-Ca pyroxene (Fs24.0±0.4Wo1.6±0.2, range Fs23.5-24.7Wo1.4-1.9, N = 5), augite (Fs8.6±0.1Wo45.6±0.5, range Fs8.5-8.7Wo45.9-45.2, N = 2).

Classification: Ordinary chondrite (LL4).

Specimens: 38.5 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Libya
Date:P 2019 Apr
Mass (g):219
Pieces:1
Class:LL4
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):29.4±0.7
Ferrosilite (mol%):24.0±0.4
Wollastonite (mol%):1.6±0.2
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):38.5
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj H28; 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:

Libya
Coordinates:Unknown.

Statistics:
     This is 1 of 1534 approved meteorites from Libya (plus 23 unapproved names) (plus 2 impact craters)

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