header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 4 Dec 2021
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:
Include past classifications in search
Limit to approved meteorite names
Search text:  
Northwest Africa 14171
Basic information Name: Northwest Africa 14171
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14171
Observed fall: No
Year found: 2020
Country: Niger
Mass:help 271 g
Classification
  history:
Recommended:  L-melt rock    [explanation]

This is 1 of 43 approved meteorites classified as L-melt rock.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Oct 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14171 (NWA 14171)

Niger

Purchased: 2020 Feb

Classification: Ordinary chondrite (L, melt rock)

History: Purchased by Mbark Arjdal in February 2020 from a dealer in Niger.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Extremely fine-grained assemblage consisting mainly of silicate minerals plus dispersed aggregates of metal+troilite spheres. Some isolated larger silicate mineral grains and a few faint relict chondrules are also present.

Geochemistry: Olivine (Fa23.5±1.0, range Fa21.9-24.2, N = 5), low-Ca pyroxene (Fs18.6±2.8Wo1.8±0.5, range Fs14.4-21.5Wo1.1-2.5, N = 7).

Classification: Ordinary chondrite (L-melt rock).

Specimens: 30.5 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Niger
Date:P 2020 Feb
Mass (g):271
Pieces:1
Class:L-melt rock
Shock stage:S6
Weathering grade:W0/1
Fayalite (mol%):23.5±1.0
Ferrosilite (mol%):18.6±2.8
Wollastonite (mol%):1.8±0.5
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):30.5
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj H27; 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:
Geography:

Niger
Coordinates:Unknown.

Statistics:
     This is 1 of 80 approved meteorites from Niger (plus 3 unapproved names)

Direct link to this page