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Northwest Africa 14134
Basic information Name: Northwest Africa 14134
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14134
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 324 g
Classification
  history:
Recommended:  lunar (feldsp. breccia)    [explanation]

This is 1 of 241 approved meteorites classified as lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 31 Aug 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14134 (NWA 14134)

Tindouf, Algeria

Purchased: 2021

Classification: Lunar meteorite (feldspathic breccia)

History: (C. Muñecas, Expometeoritos) One piece was found near Tindouf. The meteorite was eventually purchased by Chong Yaw Ong from Carlos Muñecas and Adrian Contreras

Physical characteristics: The sample has a weathered orange exterior devoid of fusion crust. A cut face shows the interior has a brecciated texture composed of abundant igneous-textured clasts.

Petrography: Description and classification (A. Love, App) Sample is a polymict fragmental breccia composed of fine-coarse-grained lithic and mineral clasts. Lithic fragments are basalt, gabbro, anorthosite, brecciated clasts, impact melt clasts, and spherulitic plagioclase clasts. Additional Minerals are: Si polymorphs, chromite, ilmenite, phosphates, troilite, FeNi metal grains and secondary calcite.

Geochemistry: (A. Love, App) Olivine Fa27.7±10.9, Fe/Mn=73-99, n=24; low-Ca pyroxene Fs23.4±8.0Wo3.4±1.2, Fe/Mn=48-59, n=8; pigeonite Fs29.9±5.1Wo10.9±3.6, Fe/Mn=46-49, n=8; high-Ca Pyroxene Fs16.5±4.0Wo40.6±3.2, Fe/Mn=31-55, n=9; plagioclase An96.5±1.8Or0.4±0.3, n=17.

Classification: Lunar achondrite (feldspathic breccia M-S3 low weathering) Based on textures and mineral compositions (Fe/Mn ratios for Olivine and pyroxene and An content of plagioclase) sample is a polymict feldspathic breccia.

Specimens: Chong Yaw Ong holds the main mass. A polished thin section, two slices, an end cut and several small fragments comprise the 24.68 g type specimen which 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):324
Pieces:1
Class:lunar (feldsp. breccia)
Shock stage:M-S3
Weathering grade:low
Fayalite (mol%):27.7±10.9
Ferrosilite (mol%):23.4±8.0; 16.5±4.0
Wollastonite (mol%):3.4±1.2; 40.6±3.2
Magnetic suscept.:2.79
Classifier:A. Love, App
Type spec mass (g):24.68
Type spec location:App
Main mass:Chon Yaw Ong
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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