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Northeast Africa 001
Basic information Name: Northeast Africa 001
     This is an OFFICIAL meteorite name.
Abbreviation: NEA 001
Observed fall: No
Year found: 2002
Country: Sudan
Mass:help 262 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Lunar (anorthositic regolith breccia)
MetBase:  v. 7.1  (2006)  Lunar (anorth)
Recommended:  Lunar (anorth)    [explanation]

This is 1 of 69 approved meteorites classified as Lunar (anorth).   [show all]
Search for other: Lunar meteorites
Writeuphelp
Writeup from MB 89:

Northeast Africa 001

Sudan

Found 2002 April

Lunar meteorite (anorthositic regolith breccia)

A brownish gray stone weighing 262 g was found by a prospector in northern Sudan near the Libya/Egypt/Sudan boundary in 2002 April.  Fusion crust is absent, fresh surface is gray to dark gray, and terrestrial alteration products are present at the meteorite edges and in penetrating cracks and veins.  Classification and mineralogy (J. Haloda and P. Tycova, PCU): a clast-rich anorthositic regolith breccia containing numerous mineral fragments and lithic clasts embedded in a well-consolidated microcrystalline impact melt matrix. Lithic clasts (up to 1 cm in size) are mainly of anorthositic lithologies; impact-melt breccias of anorthositic composition are abundant and show commonly breccia-in-breccia textures.  Fragments of primary igneous rocks of anorthositic to gabbroic composition are common, containing plagioclase An95.1-97.2, low-Ca pyroxene En46-65 Wo2.1-5 and high-Ca pyroxene En35-48Wo37-44 and rare olivine Fo79.4.  Sparse clasts of mare basalts (consisting of pigeonite+anorthite+accessory ilmenite), and glass fragments and spherules are present.  Mineral fragments are of various composition: feldspar, An92-99; orthopyroxene, Wo2-4En49-80; clinopyroxene, Wo9-39En50-87; olivine, Fo48-82 (Fe/Mn 93-100 atom%); accessory minerals are Mg-Al spinel, chromite, ilmenite (2-5 wt% MgO), troilite, FeNi metal and silica.  Several pyroxene grains have marginal symplectitic intergrowths of fayalite+hedenbergite+silica after former pyroxferroite.  Composition of the impact-melt matrix is (wt%): SiO2 = 45.7, Al2O3 = 24.1, FeO = 7.2, MgO = 7.4, CaO = 14.6, Na2O = 0.5, TiO2 = 0.5.  Secondary calcite, barite, gypsum and Fe hydroxides occur in cracks.  Specimens: type specimen, 20 g, and one polished thin section, PCU; 5.8 g, and one polished thin section, UWS; 59.66 g, ROM; 60 g, xHupé; 9.7 g, Gregory; main mass with finder.

Data from:
  MB89
  Table 7
  Line 1:
Origin or pseudonym:Sudan
Date:Apr 2002
Mass (g):262
Pieces:1
Class:Lunar
Classifier:J. Haloda and P. Tycova, PCU
Type spec mass (g):20
Type spec location:PCU
Institutions
   and collections
PCU: Charles University, Faculty of Science, Institute for Cheochemistry, Mineralogy and Mineral Resources, Albertov 6, 128 43 Prague 2, Czech Republic (institutional address; updated 3 Mar 2011)
ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Gregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
xHupé: (old address—now see GHupé or AHupé) G. and A. Hupe, 2616 Lake Youngs Court SE, Renton, WA 98058., United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
David Gregory   
Norbert Classen   
Sergey Vasiliev - SV-meteorites      
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
abibou   
Brice D. Hornback   
Chris Handler   
Doug R   
Edward Krikorian   
Gerald Armstrong   
MeteoriteCollector.org - FCOM - Russ Finney   
Michael S. Scherman   
Robert Zdancewicz   
Woreczko Jan & Wadi   
xeqtr   
Geography:

Sudan
Coordinates:Unknown.

Statistics:
     This is 1 of 8 approved meteorites from Sudan (plus 1 unapproved name)

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