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Northwest Africa 032
Basic information Name: Northwest Africa 032
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 032
Observed fall: No
Year found: 1999
Country: Morocco
Mass:help 300 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Lunar (basalt)
Meteoritical Bulletin:  MB 84  (2000)  Lunar (olivine-pyroxene basalt)
MetBase:  v. 7.1  (2006)  Lunar (basalt)
Recommended:  Lunar (basalt)    [explanation]

This is 1 of 19 approved meteorites classified as Lunar (basalt).   [show all]
Search for other: Lunar meteorites
Writeuphelp
Writeup from MB 84:

Northwest Africa 032

Morocco , near Algerian border

Found 1999 October

Lunar meteorite (olivine-pyroxene basalt)

A stone of ~ 300 g was found in the desert (see Table 9). Classification and mineralogy (T. Fagan, UHaw; T. Bunch and J. Wittke, NAU): olivine, pyroxene, and chromite phenocrysts occur in a groundmass of elongate, zoned pyroxene (En1–25Wo15–25) and feldspar ( ~ An85) crystals radiating from common nucleation sites; opaque phases include elongate, skeletal ilmenite, troilite, and trace metal; olivine phenocrysts ( ~ 12 vol%) up to 300 μm are zoned from Fo65 (cores) to Fo60 (rims) and commonly have chromite inclusions; pyroxene phenocrysts ( ~ 5 vol%) are complexly zoned, with En4 0–50 Wo20–40 and En15–25Wo10–20 domains; both olivine and pyroxene phenocrysts surrounded by Fe-rich quenched margins (olivines, ~ Fo30; pyroxenes, En5–25Wo15–30); glass with ~ 45.7 wt% SiO2 occurs in semicontinuous shock veins up to 50 μm wide; some terrestrial weathering products are present in fractures, but primary assemblage is essentially unaltered.  Oxygen-isotopic compositions (R. Clayton, UChi): δ18O = +5.63‰, δ17O = +2.92‰.  Bulk composition (in wt%, E. Jarosewich, SI):  SiO2 = 44.7; TiO2 = 3.08; Al2O3 = 8.74; FeO = 23.0; MnO = 0.33; MgO = 8.45; CaO = 10.9; Na2O = 0.37; K2O = 0.11; H2O = 0.06.  Specimens:  type specimen, about 5–6 g, contact T. Bunch, NAU; 1.1 g plus thin section, UHaw; main mass, 260 g, Radomsky.

Data from:
  MB84
  Table 9
  Line 32:
Mass (g):300
Pieces:1
Class:Lunar
Comments:Found by a consortium of anonymous European collectors; location possibly near 30º22' N 5º3' W, which is west of the Kem Kem plateau
Plots: O isotopes:  
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
UChi: University of Chicago, Chicago, IL 60637, United States (institutional address; updated 28 Feb 2011)
Radomsky: Walt Radomsky, Rutgers Meteorite Laboratory, Piscataway, NJ 08854, United States (private address; updated 26 Apr 2005)
UHaw: Hawai'i Institute of Geophysics and Planetology, School of Ocean and Earth Science and Technology, University of Hawai'i, 2525 Correa Road, Honolulu, HI 96822, United States (institutional address; updated 25 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 84, MAPS 35, A199-A225 (2000)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Norbert Classen   
Shinichi Kato   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Charley   
Gerald Armstrong   
MeteoriteCollector.org - FCOM - Russ Finney   
Michael S. Scherman   
Solar Anamnesis   
Geography:

Morocco
Coordinates:
     Catalogue of Meteorites:   (30° 22'N, 5° 3'W)
     Recommended::   (30° 22'N, 5° 3'W)

Statistics:
     This is 1 of 62 approved meteorites from Meknès-Tafilalet, Morocco
     This is 1 of 1402 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)
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