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Northwest Africa 14111
Basic information Name: Northwest Africa 14111
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14111
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 4.77 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 17 Jul 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14111 (NWA 14111)

Tindouf, Algeria

Purchased: 2021

Classification: HED achondrite (Eucrite)

History: (C. Muñecas) One piece was found by a nomad in a place of unknown coordinates in northwest Africa. The meteorite was eventually purchased by Carlos Muñecas from a dealer of Tindouf.

Physical characteristics: Sample has a dark brown exterior wind-ablated exterior that is partially coated with caliche. The cut face shows the interior is a weakly brecciated igneous sample.

Petrography: Description and classification (A. Love, App) Sample is dominated by ophitic- textured domains composed of exsolved pyroxenes and twinned plagioclase. Some shows some thin comminuted zone along fractures. Additional minerals are: Ti-poor chromite, ilmenite, secondary calcite, a Si-polymorph.

Geochemistry: (A. Love, App) Low-Ca pyroxene (Fs61.7±0.5Wo2.2±0.3, Mg#=36.9±0.6, Fe/Mn=28.9±0.7, n=12); high Ca pyroxene (Fs26.9±1.5Wo43.5±2.0, Fe/Mn=29.6±1.1, n=12); plagioclase (An91.8±2.5Or0.6±0.1, n=12).

Classification: HED achondrite (monomict eucrite). Based on textures, mineral compositions, magnetic susceptibility, sample is a basaltic eucrite.

Specimens: Carlos Muñecas (Expometeoritos) holds the main mass. A polished thin section and a 24.97 g endcut are on deposit at App.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Tindouf
Place of purchase:Tindouf
Date:P 2021
Mass (g):4772
Pieces:1
Class:Eucrite
Shock stage:M-S2
Weathering grade:low
Ferrosilite (mol%):61.7±0.5; 26.9±1.5
Wollastonite (mol%):2.2±0.3; 43.5±2.0
Magnetic suscept.:2.66
Classifier:A. Love, App
Type spec mass (g):24.97
Type spec location:App
Main mass:Carlos Muñecas (Expometeoritos)
Comments:Submitted by Anthony Love
Institutions
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 43 approved meteorites from Tindouf, Algeria (plus 1 impact crater)
     This is 1 of 1133 approved meteorites from Algeria (plus 27 unapproved names) (plus 4 impact craters)

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