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Northwest Africa 13410
Basic information Name: Northwest Africa 13410
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13410
Observed fall: No
Year found: 2017
Country: Algeria
Mass:help 99.2 g
Classification
  history:
Meteoritical Bulletin:  MB 109  (2020)  L6
Recommended:  L6    [explanation]

This is 1 of 12780 approved meteorites (plus 11 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 5 Sep 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13410 (NWA 13410)

Tindouf, Algeria

Find: 2017

Classification: Ordinary chondrite (L6)

History: Two pieces that comprise the 99.22 g sample were found near Tindouf, Algeria, in May 2017. Dave Lehman and his partner obtained the sample in 2019.

Physical characteristics: The sample was found as two pieces that fit together to comprise an irregular shaped stone with a dark brown weathered exterior with a light orangish brown interior.

Petrography: Description and classification (A. Love, App) Sample has a recrystallized chondritic texture. Chondrules have an average apparent diameter of 631.5 µm, n=8. Secondary plagioclase has an average grain length of 70 µm, n=16.

Geochemistry: (A. Love, App) Olivine (Fa24.7±0.2, Fe/Mn=45.8±1.7, n=3), low-Ca pyroxene (Fs21.6±0.2Wo1.9±0.2, n=3).

Classification: Ordinary chondrite (L6, C-S3, W4) Sample is an L chondrite based on mineral compositions, and magnetic susceptibility. Based on grainsize of secondary plagioclase and equilibrated compositions, this sample is an L6.

Specimens: Dave Lehman and partner hold the main masses. A 2 0g sample and mounted piece are on deposit at App.

Data from:
  MB109
  Table 0
  Line 0:
State/Prov/County:Tindouf
Place of purchase:Tindouf
Date:2017
Mass (g):99.22
Pieces:2
Class:L6
Shock stage:C-S3
Weathering grade:W4
Fayalite (mol%):24.7±0.2
Ferrosilite (mol%):21.6±0.2
Wollastonite (mol%):1.9±0.2
Magnetic suscept.:4.24
Classifier:A. Love, App
Type spec mass (g):20
Type spec location:App
Main mass:Dave Lehman
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. 109, in preparation (2020)
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 60 approved meteorites from Tindouf, Algeria (plus 1 impact crater)
     This is 1 of 1356 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
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Revision
  history:
  This lists important revisions made to data for this record.

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