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 13860
Basic information Name: Northwest Africa 13860
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13860
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 16.2 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 28 Mar 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13860 (NWA 13860)

(Northwest Africa)

Purchased: 2020 Sep

Classification: Ordinary chondrite (LL6)

History: Purchased in September 2020 by Juan Avilés Poblador on behalf of UAlic from a dealer in Chinguetti, Mauritania.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) The specimen is a fresh, highly recrystallized breccia with some relatively large remnant chondrules in angular clasts. Accessory phases include sodic plagioclase, low-Ti chromite, taenite, troilite and chlorapatite. No kamacite was found.

Geochemistry: Olivine (Fa31.1±0.2, range Fa31.0-31.3, N = 5), low-Ca pyroxene (Fs25.0±0.3Wo2.1±0.2, range Fs24.5-25.4Wo1.9-2.3, N = 5), augite (Fs10.7±0.6Wo42.9±0.5, range Fs10.0-11.0Wo42.5-43.5, N = 3).

Classification: Ordinary chondrite (LL6 breccia).

Specimens: 4.3 g including one polished thin section at UWB; remainder in the collection of UAlic.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Chinguetti, Mauritania
Date:P 2020 Sep
Mass (g):16.2
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):31.1±0.2
Ferrosilite (mol%):25.0±0.3
Wollastonite (mol%):2.1±0.2
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):4.3
Type spec location:UWB
Main mass:J. Poblador
Comments:Work name JAP20-9; 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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
UAlic: Earth Sciences Department University of Alicante San Vicente del Raspeig, Spain (institutional address; updated 9 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
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 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