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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 787 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 Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1847 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater)

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