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Northwest Africa 1462
Basic information Name: Northwest Africa 1462
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1462
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 203 g
Classification
  history:
Meteoritical Bulletin:  MB 90  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 572 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 21 Feb 2005
Writeuphelp
Writeup from MB 90:

Northwest Africa 1462

Morocco

Find: 2002

Achondrite (ureilite)

History: On 3 March 2002, DGregory purchased a 203 g sample in Erfoud, Morocco.

Petrography: (P. Warren, UCLA) The meteorite is mostly composed of olivine and pigeonite. The Px/(Px+Ol) ratio is ~0.3. Olivines have rims with reduced chemistry.

Geochemistry: Olivine (Fo78.1; CaO = 0.30, Cr2O3 = 0.30 [both wt%; n = 10]), pigeonite (En68.1Wo14.4; Cr2O3 = 1.23, Al2O3 = 1.93, MnO = 0.44 [all wt%; n = 12]). Based on INAA data (UCLA), typical ureilite trace-element composition: Sc = 9.4, Ni = 900, Zn = 159 (all µg/g); Ir = 360, Au = 31 (all ng/g).

Classification: Achondrite (ureilite); low shock.

Specimens: A 20.2 g type specimen is on deposit at UCLA. DGregory holds the main mass.

Data from:
  MB90
  Table 2
  Line 5:
Place of purchase:Erfoud, Morocco
Date:3 Mar 2002
Mass (g):203
Pieces:1
Class:Ure
Shock stage:Low
Fayalite (mol%):~22
Type spec mass (g):20.2
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
DGregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7688 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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