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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 569 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 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:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 50 approved meteorites from Tindouf, Algeria (plus 1 impact crater)
     This is 1 of 1250 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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