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Northwest Africa 14601
Basic information Name: Northwest Africa 14601
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14601
Observed fall: No
Year found: 2001
Country: Morocco
Mass:help 3 kg
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 15 Jan 2022
Writeup from MB 111:

Northwest Africa 14601 (NWA 14601)


Purchased: 2001

Classification: Ordinary chondrite (L5)

History: A single 3 kg individual was purchased by D. Gregory in 2001 from Joe Arronson who bought it in Erfoud, Morocco. Specimen was investigated at UWO under the name DG-03-2011.

Physical characteristics: A head-sized pyramidal stone completely covered by dark fusion crust with mature desert polish. Physical properties (P. Cassidy, UWO): Magnetic susceptibility is log χ (× 10-9 m3/kg) = 4.06.

Petrography: (M. MacRae, P. McCausland, UWO) Cut faces show a bright orange matrix containing chondrules and a 1 cm ovoid chondrule; metal is present as disseminated mm-sized grains, but not abundant. In thin section, porphyritic olivine-pyroxene (55%), radial pyroxene (15%) and granular olivine (30%) chondrules are poorly defined and the matrix is recrystallized. Olivine shows undulatory to mosaic extinction, with extensive planer fractures in both chondrules and isolated grains. Fe-oxide staining of silicates is pervasive throughout section, along with penetrating veining through the majority of the matrix and chondrules.

Geochemistry: EPMA: olivine Fa24.41±0.42 (n=20); Ca-poor pyroxene Fs20.56±0.31, Wo1.42±0.22 (n=19).

Classification: Ordinary chondrite: L5 (S3) W2.

Specimens: Type specimen location: UWO. Main mass: D. Gregory.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2001
Mass (g):2998
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):24.41±0.42 (n=20)
Ferrosilite (mol%):20.56±0.31 (n=19)
Wollastonite (mol%):1.42±0.22 (n=19)
Magnetic suscept.:4.06
Classifier:P. McCausland, UWO
Type spec mass (g):20.25
Type spec location:UWO
Main mass:Gregory
Comments:Submitted by P. McCausland
   and collections
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)
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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     This is 1 of 1902 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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