header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 6 Aug 2022
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 14173
Basic information Name: Northwest Africa 14173
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14173
Observed fall: No
Year found: 2020
Country: Mali
Mass:help 458 g
Classification
  history:
Recommended:  L4    [explanation]

This is 1 of 1946 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 20 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14173 (NWA 14173)

Mali

Purchased: 2020 Apr

Classification: Ordinary chondrite (L4)

History: Purchased by Mbark Arjdal in April 2020 from a Malian dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Closely packed, well-formed equilibrated chondrules are set in a sparse matrix containing altered kamacite, troilite, chromite and merrillite.

Geochemistry: Olivine (Fa24.3±0.4, range Fa23.9-25.1, N = 7), low-Ca pyroxene (Fs20.5±0.2Wo1.0±0.2, range Fs20.3-20.7Wo0.7-1.1, N = 4).

Classification: Ordinary chondrite (L4).

Specimens: 38 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Mali
Date:P 2020 Apr
Mass (g):458
Pieces:1
Class:L4
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):24.3±0.4
Ferrosilite (mol%):20.5±0.2
Wollastonite (mol%):1.0±0.2
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):38
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj ZM 875; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
A. Irving   
Geography:

Mali
Coordinates:Unknown.

Statistics:
     This is 1 of 69 approved meteorites from Mali (plus 1 unapproved name)

Direct link to this page