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Northwest Africa 1500
Basic information Name: Northwest Africa 1500
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1500
Observed fall: No
Year found: 2000
Country: (Northwest Africa)
Mass:help 3.3 kg
Classification
  history:
Meteoritical Bulletin:  MB 87  (2003)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Achondrite-ung    [explanation]

This is 1 of 88 approved meteorites classified as Achondrite-ung.   [show all]
Search for other: Achondrites, Ungrouped achondrites
Comments: Revised 6 Jul 2009: Reclassified in Kita et al. 2009 and other recent works (Goodrich, pers. comm.)
Writeuphelp
Writeup from MB 87:

Northwest Africa 1500

Morocco?

Purchased 2000

Achondrite (ureilite)

A nearly complete individual of about 3.3 kg with fusion crust patches was bought by meteorite hunters in Zagora. During the Tucson mineral show it was sold to a mineral dealer and traded to R. Bartoschewitz in April 2002. Mineralogy and classification (R. Bartoschewitz, Bart; F. Wlotzka, MPI): This monomict rock has a typical ureilite texture of equigranular olivines (0.2–0.5 mm, Fo72, CaO, and Cr2O3 < 0.1%) set in black vein material with finely dispersed metal. Minor components are augite (Wo45En44) and orthopyroxene (Wo2.2En70), plagioclase (An37), chromite (0.2–0.3 mm, 5% MgO, 12% Al2O3) and metal (1.5% Ni, 0.3% Si). The plagioclase grains are 0.5 to 3 mm across and in igneous contact with olivine, the larger ones poikilitically enclose rounded olivine grains. Oxygen isotope composition (R.N. Clayton and T. Mayeda, UChi): δ18O = +4.56‰; δ17O = +1.58‰ plot away from other ureilites. But ∆17O versus mg-number extends the ureilite trend. Specimens: type specimen, 20 g MPI; main mass, Bart.

Data from:
  MB87
  Table 8
  Line 122:
Place of purchase:Zagora
Date:P 2000
Mass (g):3300
Pieces:1
Class:Ure
Classifier:Wlotzka, MPI and Bart
Type spec mass (g):20
Type spec location:MPI
Main mass:Bart
Plots: O isotopes:  
Institutions
   and collections
UChi: University of Chicago, Chicago, IL 60637, United States (institutional address; updated 28 Feb 2011)
Bart: Bartoschewitz Meteorite Laboratory, Lehmweg 53, D-38518 Gifhorn, Germany; Website (private address; updated 4 Aug 2013)
MPI: Max-Planck-Institut für Chemie, Abteilung Kosmochemie, Postfach 3060, D-55020 Mainz, Germany; Website (institutional address; updated 7 Nov 2015)
Catalogs:
References: Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Shinishi Kato   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Wang Ziyao                  
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7005 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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