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Northwest Africa 14001
Basic information Name: Northwest Africa 14001
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14001
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 25 g
Classification
  history:
Recommended:  LL4    [explanation]

This is 1 of 389 approved meteorites classified as LL4.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 31 May 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14001 (NWA 14001)

(Northwest Africa)

Purchased: 2020

Classification: Ordinary chondrite (LL4)

History: Purchased in 2020 by Geologist Juan Aviles Poblador from a meteorite dealer at the Tucson gem and mineral show.

Physical characteristics: Single stone with visible fusion crust.

Petrography: (D. Sheikh, Cascadia) This sample contains chondrules (900±100 µm, n=10) set in a fine-grained matrix with accesory troilite, chromite, and Fe-Ni metal.

Geochemistry: Olivine (Fa26.7±0.3 ,range Fa26.1-27.3, n=28), Low-Ca Pyroxene (Fs22.2±0.3Wo1.1±0.1, range Fs21.6-22.7Wo0.9-1.4, n=11).

Classification: Ordinary chondrite (LL4) based on Fa and Fs values, and on average chondrule diameter.

Specimens: 5.1 g and a thin section at Cascadia; main mass with Juan Aviles Poblador.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Tucson, AZ
Date:P 2020
Mass (g):25
Pieces:1
Class:LL4
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):26.7±0.3
Ferrosilite (mol%):22.2±0.3
Wollastonite (mol%):1.1±0.1
Classifier:D. Sheikh, Cascadia
Type spec mass (g):5.1
Type spec location:Cascadia
Main mass:Juan Aviles Poblador
Comments:Submitted by Daniel Sheikh
Institutions
   and collections		 Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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