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Northwest Africa 13666
Basic information Name: Northwest Africa 13666
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13666
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 455 g
Classification
  history:
Recommended:  H4    [explanation]

This is 1 of 6022 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 10 Jan 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13666 (NWA 13666)

(Northwest Africa)

Purchased: 2020

Classification: Ordinary chondrite (H4)

History: Purchased in 2020 by Jasper Spencer from a seller in Morocco.

Physical characteristics: Single stone with dark-brown fusion crust.

Petrography: (D. Sheikh, FSU) Specimen is a chondrite containing chondrules (~400±100 µm), chromite, and kamacite.

Geochemistry: Olivine (Fa18.1±0.5, range Fa17.4-19.9, n=39), Low-Ca Pyroxene (Fs16.2±0.6Wo1.0±0.6, range Fs14.8-17.3Wo0.4-2.1, n=16).

Classification: Ordinary Chondrite (H4)

Specimens: 23.02 g at UCLA; main mass with Jasper Spencer.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020
Mass (g):455
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):18.1±0.5
Ferrosilite (mol%):16.2±0.6
Wollastonite (mol%):1.0±0.6
Classifier:D. Sheikh, FSU
Type spec mass (g):23.02
Type spec location:UCLA
Main mass:Jasper Spencer
Comments:Submitted by Daniel Sheikh
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)
FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7810 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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