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Northwest Africa 14668
Basic information Name: Northwest Africa 14668
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14668
Observed fall: No
Year found: 2008
Country: Morocco
Mass:help 27.5 g
Recommended:  L5    [explanation]

This is 1 of 8487 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 12 Feb 2022
Writeup from MB 111:

Northwest Africa 14668 (NWA 14668)


Purchased: 2008

Classification: Ordinary chondrite (L5)

History: Sample was purchased at Tucson Mineral show in 2008 from A. Aaronson, who acquired it from Morocco. Sample is catalogued at the Royal Ontario Museum as M59708.

Physical characteristics: Small meteorite with smooth fusion crust surfaces on 3 faces and a large, orange-weathered broken surface, suggesting that it broke off from a larger individual. Desert polish is moderate on fusion crust surfaces and minor on broken surface. Some disseminated metal is visible in broken surface. Physical properties: Magnetic susceptibilty of a 21.51 g specimen is log χ (× 10-9 m3/kg) = 4.27.

Petrography: Cut faces show a mottled orange-weathered interior with >mm sized disseminated metal grains and some defined chondrules. In thin section, chondrules are poorly delineated and the matrix is recryatallized. One RP chondrule is 2.3 mm in diameter. Olivine and pyroxene show undulatory to mosaic extinction and some planar fractures. In relfected light, sulfide (4 vol%) in subhedral grains up to 500 ┬Ám is more abundant than subrounded metal grains (2 vol%), and both sulfide and metal grains can have associated rims of Fe oxide, which is also observed to line vugs.

Classification: Ordinary chondrite: L5 (S3) W2. Low metal content, moderate magnetic susceptibility and the prevalence of sulfide over metal indicates L chondrite.

Specimens: Type specimen ROM; main mass DGregory

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson, USA
Date:P 2008
Mass (g):27.47
Shock stage:S3
Weathering grade:W2
Magnetic suscept.:4.27
Classifier:P. McCausland (ROM, UWO), V Di Cecco (ROM)
Type spec mass (g):5.98
Type spec location:ROM
Main mass:Dgregory
Comments:Submitted by V. Di Cecco, ROM
   and collections
ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 2011)
UWO: University of Western Ontario, Department of Earth Sciences, BGS 1026, 1151 Richmond St. N, London, Ontario, Canada N6A 5B7, Canada (institutional address; updated 18 Jul 2015)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
DGregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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     This is 1 of 1903 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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