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Northeast Africa 010
Basic information Name: Northeast Africa 010
     This is an OFFICIAL meteorite name.
Abbreviation: NEA 010
Observed fall: No
Year found: 2019
Country: Libya
Mass:help 647 g
Classification
  history:
Recommended:  R3-5    [explanation]

This is 1 of 16 approved meteorites classified as R3-5.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 27 Jun 2020
Writeuphelp
Writeup from MB 109:

Northeast Africa 010 (NEA 010)

Libya

Purchased: 2019 Jan

Classification: Rumuruti chondrite (R3-5)

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

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Relatively small separated, well-formed, relatively unequilibrated chondrules (apparent diameter 650±330 µm, N = 24), plus some equilibrated type 4 and 5 clasts and olivine mineral fragments, are set in a finer grained matrix (orange in thin section) containing Ti-Al chromite and stained pentlandite. Metal is apparently absent.

Geochemistry: Olivine in chondrules (Fa32.1±11.5, range Fa10.1-39.6, N = 10), low-Ca pyroxene (Fs18.8±9.9Wo1.2±0.5, range Fs8.0-29.9Wo0.5-1.7, N = 5), subcalcic augite (Fs7.4Wo31.3), augite (Fs10.6Wo45.6), olivine in Type 4 clast (Fa39.4±0.4, range Fa39.1-39.7, N = 2).

Classification: R chondrite (Type 3-5 breccia).

Specimens: 43.4 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Libya
Date:P 2019 Jan
Mass (g):647
Pieces:1
Class:R3-5
Shock stage:S2
Weathering grade:low
Fayalite (mol%):32.1±11.5
Ferrosilite (mol%):18.8±9.9
Wollastonite (mol%):1.2±0.5
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):43.4
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj ZM 224; 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
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Geography:

Libya
Coordinates:Unknown.

Statistics:
     This is 1 of 1502 approved meteorites from Libya (plus 22 unapproved names) (plus 2 impact craters)

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