header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 15 Apr 2024
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 14187
Basic information Name: Northwest Africa 14187
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14187
Observed fall: No
Year found: 2021
Country: Niger
Mass:help 548 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2930 approved meteorites (plus 2 unapproved names) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 4 Sep 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14187 (NWA 14187)

Niger

Purchased: 2021 Jan

Classification: Ordinary chondrite (LL6)

History: Purchased by Mbark Arjdal in January 2021 from a dealer in Niger.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Largely recrystallized with rare chondrule remnants. Accessory phases are troilite, stained kamacite, sodic plagioclase, chromite and chlorapatite.

Geochemistry: Olivine (Fa31.1±0.4, range Fa30.6-31.5, N = 7), low-Ca pyroxene (Fs25.3±0.7Wo2.1±0.1, range Fs24.6-26.4Wo1.9-2.2, N = 6), augite (Fs10.2Wo43.6).

Classification: Ordinary chondrite (LL6).

Specimens: 20.2 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 2021 Jan
Mass (g):548
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W0/1
Fayalite (mol%):31.1±0.4
Ferrosilite (mol%):25.3±0.7
Wollastonite (mol%):2.1±0.1
Classifier:A. Irving, UWS, and J. Boesenberg, Brown U.
Type spec mass (g):20.2
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj H23; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)
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
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Niger
Coordinates:Unknown.

Statistics:
     This is 1 of 119 approved meteorites from Niger (plus 4 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

Direct link to this page