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Northwest Africa 14003
Basic information Name: Northwest Africa 14003
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14003
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 1950 g
Classification
  history:
Recommended:  H4    [explanation]

This is 1 of 6415 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 31 May 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14003 (NWA 14003)

(Northwest Africa)

Purchased: 2020 Jan

Classification: Ordinary chondrite (H4)

History: Purchased in 2020 by Noreddine Azelmat from a meteorite dealer in Morocco.

Physical characteristics: Single stone with visible fusion crust.

Petrography: (D. Sheikh, Cascadia) This sample contains chondrules (450±150 µm, n=12) set in a fine-grained matrix with accesory Fe-Ni metal and troilite.

Geochemistry: Olivine (Fa18.2±0.4 ,range Fa17.7-19.3, n=18), Low-Ca Pyroxene (Fs16.3±0.6Wo1.1±0.6, range Fs15.3-17.1Wo0.4-2.1, n=11).

Classification: Ordinary chondrite (H4) based on Fa and Fs values, and on average chondrule diameter.

Specimens: 20.1 g and a thin section at Cascadia; main mass with Noreddine Azelmat.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Jan
Mass (g):1950
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W4
Fayalite (mol%):18.2±0.4
Ferrosilite (mol%):16.3±0.6
Wollastonite (mol%):1.1±0.6
Classifier:D. Sheikh, Cascadia
Type spec mass (g):20.1
Type spec location:Cascadia
Main mass:Noreddine Azelmat
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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