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Northwest Africa 14343
Basic information Name: Northwest Africa 14343
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14343
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 652 g
Recommended:  LL6-melt breccia    [explanation]

This is 1 of 17 approved meteorites classified as LL6-melt breccia.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 31 Oct 2021
Writeup from MB 110:

Northwest Africa 14343 (NWA 14343)

(Northwest Africa)

Purchased: 2020

Classification: Ordinary chondrite (LL6, melt breccia)

History: Purchased from a Moroccan meteorite dealer in August 2020.

Physical characteristics: Single stone, no fusion crust, saw-cut slice reveals a fragmental breccia composed of clasts set in a matrix of dark-colored quenched shock melt with cataclastic fine grained material mixed throughout.

Petrography: (C. Agee, A. Ross, UNM) Reflected light microscopy shows numerous texturally equilibrated clasts of type 6 ordinary chondrite material. Plagioclase grains are up to 150 microns in size. Ubiquitous minor troilite was detected with the electron microprobe.

Geochemistry: (A. Ross, UNM) Olivine Fa31.6±0.2, Fe/Mn=63±2, n=7; low-Ca pyroxene Fs25.5±0.4Wo1.6±0.3, Fe/Mn=39±2, n=7.

Classification: LL6-melt breccia

Specimens: 32.9 g on deposit at UNM, Larry Atkins holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020
Mass (g):652
Class:LL6-melt breccia
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):31.6±0.2
Ferrosilite (mol%):25.5±0.4
Wollastonite (mol%):1.6±0.3
Classifier:C. Agee, UNM
Type spec mass (g):32.9
Type spec location:UNM
Main mass:Larry Atkins
Comments:Field name LA-3013; submitted by C. Agee, UNM
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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