header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 18 Sep 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:
Limit to approved meteorite names
Search text:  
Northwest Africa 14131
Basic information Name: Northwest Africa 14131
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14131
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 5.5 kg
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 513 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 24 Jul 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14131 (NWA 14131)

(Northwest Africa)

Purchased: 2021 May

Classification: HED achondrite (Eucrite)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania in May, 2021.

Physical characteristics: Many dark grayish fragments some of which almost completely covered with fusion crust.

Petrography: The meteorite is a coarse-grained breccia composed of up to 6 mm sized basaltic clasts and up to 2 mm sized mineral fragments set in fine-grained clastic matrix. Mineral phases are predominantly exsolved pyroxene and mostly blocky calcic plagioclase grains. Minor phases include silica, chromite, ilmenite, fayalite, and troilite. No metallic iron has been detected.

Geochemistry: low-Ca pyroxene: Fs63.5±0.7Wo2.9±1.1 (Fs62.2-64.1Wo1.6-4.8, FeO/MnO=29-31, n=5); Ca-pyroxene: Fs30.8±0.5Wo42.5±0.8 (Fs30.4-31.8Wo41.4-43.7, FeO/MnO=27-30, n=5); calcic plagioclase: An82.1±7.9 (An71.1-91.3, n=5)

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2021 May
Mass (g):5500
Pieces:many
Class:Eucrite
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):63.5; 30.8
Wollastonite (mol%):2.9; 42.5
Classifier:A. Greshake, MNB
Type spec mass (g):248
Type spec location:MNB
Main mass:Salamu Ali
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

Direct link to this page