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Northwest Africa 12394
Basic information Name: Northwest Africa 12394
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12394
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 16.8 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2930 approved meteorites (plus 2 unapproved names) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 9 Feb 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12394 (NWA 12394)

(Northwest Africa)

Purchased: 2016

Classification: Ordinary chondrite (LL6)

History: A 16.8 g sample was found in Morocco prior to 2017 and sold to a meteorite dealer. J. Donald Cline and John Sinclair purchased the sample during the 2016 Tucson Gem and Mineral show.

Physical characteristics: Sample is irregularly shaped, dark brown, and 99% covered in a dull, dark-brown fusion crust. The sample contains a few shallow regmaglypts and a faint, continuous rollover lip is visible on one side of the stone.

Petrography: Description and classification (A. Love, App): Sample contains indistinct chondrules (avg. dia 1250 µm) set within a recrystallized matrix. Chondrule mesostasis is completely recrystallized. Sample contains plagioclase crystals with an average length of 60µm.

Geochemistry: (A. Love, App) Olivine: Fa29.6±0.2, n=8; low Ca pyroxene Fs25.8±0.1Wo1.5±0.1, n=8.

Classification: LL6, C-S3, W2. LL based on diameter of chondrules, olivine and pyroxene compositions and magnetic susceptibility. Type 6 based on texture, standard deviations of Fa and Fs compositions and size of plagioclase. Shock stage C-S3 based upon undulatory extinction and planar fractures in olivine.

Specimens: PARI holds the main mass. One endcut weighing 6.2g and a polished thin section are on deposit at App.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Tucson Gem and Mineral Show
Date:P 2016
Mass (g):16.8
Pieces:1
Class:LL6
Shock stage:C-S3
Weathering grade:W2
Fayalite (mol%):29.6±0.2
Ferrosilite (mol%):25.8±0.1
Wollastonite (mol%):1.5±0.1
Classifier:A. Love, App
Type spec mass (g):6.2
Type spec location:App
Main mass:PARI
Finder:Unknown
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)
PARI: Pisgah Astronomical Research Institute 1 Pari Dr Rosman, NC 28772, United States (institutional address; updated 13 Sep 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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