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Northwest Africa 14132
Basic information Name: Northwest Africa 14132
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14132
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 3.4 kg
Classification
  history:
Recommended:  L3-4    [explanation]

This is 1 of 7 approved meteorites classified as L3-4.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 31 Aug 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14132 (NWA 14132)

Tindouf, Algeria

Purchased: 2021

Classification: Ordinary chondrite (L3-4)

History: (C. Muñecas, Expometeoritos) One piece was found near Tindouf, Algeria. The meteorite was eventually purchased by Carlos Muñecas from a dealer in Tindouf.

Physical characteristics: Approximately 70% of the sample surface has a discontinuous coating black, flow-lined fusion crust. The cut face of the sample is dark gray to dark brown has a brecciated chondritic texture composed of recrystallized clasts set within a host of well-defined chondrules some of which have rims of metal and sulfide.

Petrography: Description and classification (A. Love, App) Sample has a brecciated chondritic texture with recrystallized chondritic clasts set within a host of unequilibrated chondrules and fragments. Chondrules have an average apparent diameter of 546 μm (n=35). Sample contains ~3.5 vol% of FeNi Metal. Clinoenstatite is the dominant form of low-Ca pyroxene. Sample contains a single 1.2 cm porphyritic olivine-pyroxene macro-chondrule. Additional minerals: chromite, apatite and troilite.

Geochemistry: (A. Love, App) Host: Olivine Fa17.5±9.5 (Fa1.2-27.1, Cr2O3 in ferroan olivine=0.9±0.2, Fe/Mn=48.1±12.9, n=16); low-Ca pyroxene Fs8.8±6.6Wo0.6±0.4 (Fs1.3-19.0Wo0.2-1.1, Fe/Mn=32.5±25.2, n=10). Clasts: Olivine Fa24.4±0.5, Fe/Mn=43.7±2.2, n=6; low-Ca pyroxene Fs13.4±3.1Wo0.5±0.2, Fe/Mn=21.5±4.5, n=5.

Classification: Ordinary chondrite (L3-4 C-S2 W1). Based on textures, chondrule size, magnetic susceptibility, unequilibrated and poorly equilibrated mineral compositions, sample is an L3-4.

Specimens: Carlos Muñecas (Expometeoritos) holds the main mass. A polished thin section and a 50.31 g sliced individual 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):3400
Pieces:1
Class:L3-4
Shock stage:C-S2
Weathering grade:W1
Fayalite (mol%):17.5±9.5; 24.4±0.5
Ferrosilite (mol%):8.8±6.6; 13.4±3.1
Wollastonite (mol%):0.6±0.4; 0.5±0.2
Magnetic suscept.:4.71
Classifier:A. Love, App
Type spec mass (g):50.31
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 44 approved meteorites from Tindouf, Algeria (plus 1 impact crater)
     This is 1 of 1140 approved meteorites from Algeria (plus 27 unapproved names) (plus 4 impact craters)

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