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Northwest Africa 14400
Basic information Name: Northwest Africa 14400
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14400
Observed fall: No
Year found: 2019
Country: Morocco
Mass:help 611 g
Classification
  history:
Recommended:  L3    [explanation]

This is 1 of 793 approved meteorites (plus 1 unapproved name) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 31 Oct 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14400 (NWA 14400)

Morocco

Purchased: Aug 2019

Classification: Ordinary chondrite (L3)

History: Purchased by Sean Tutorow from a dealer in August 2019 in Morocco.

Physical characteristics: The type specimen has a rugged and patined surface. The interior has a very dark brown color with cracks. Small chondrules are discerned and sulfides, no metal is preserved.

Petrography: (A. Bouvier, UBayr) Heavy alteration of metal, sulfides and partially of silicates with large oxide-rich veins throughtout the surface. Chondrules are well preserved.

Geochemistry: (R. Matthäus, UBayr) Olivine 22.3±4.2, Cr2O3=0.05±0.06% (n=30), low-Ca pyroxene Fs18.5±2.3Wo1.2±0.9 (n=7), high-Ca pyroxene Fs11.6±0.5Wo36.5±5.0 (n=2).

Classification: L3. Possible sub-type >3.7 based on olivine composition.

Specimens: 29.3 g including a polished mount at UBayr. S. Tutorow holds the main mass.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P Aug 2019
Mass (g):610.7
Pieces:1
Class:L3
Weathering grade:W5
Fayalite (mol%):22.3±4.2
Ferrosilite (mol%):18.5±2.3, 11.6±0.5
Wollastonite (mol%):1.2±0.9, 36.5±5.0
Classifier:A. Bouvier, UBayr
Type spec mass (g):29.3
Type spec location:UBayr
Main mass:S. Tutorow
Comments:G652; submitted by A. Bouvier
Institutions
   and collections
UBayr: Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany (institutional address; updated 5 Feb 2020)
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
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1902 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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