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Northwest Africa 13660
Basic information Name: Northwest Africa 13660
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13660
Observed fall: No
Year found: 2019
Country: Algeria
Mass:help 110 g
Classification
  history:
Recommended:  L6    [explanation]

This is 1 of 11582 approved meteorites (plus 10 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 10 Jan 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13660 (NWA 13660)

Algeria

Find: 2019

Classification: Ordinary chondrite (L6)

History: Purchased in 2020 by Matthew Stream from a seller in Algeria.

Physical characteristics: Single stone with dark-brown fusion crust.

Petrography: (D. Sheikh, FSU) Specimen is a chondrite containing secondary recrystallized feldspar (~50 µm), kamacite, and troilite. Only a few chondrules are observed (~800 µm, n=3).

Geochemistry: Olivine (Fa25.5±0.5, range Fa24.4-26.9, n=27), Low-Ca Pyroxene (Fs21.4±0.5Wo1.6±0.2, range Fs20.9-22.6Wo1.2-1.9, n=11).

Classification: Ordinary Chondrite (L6)

Specimens: 21.3 g at UCLA; main mass with Matthew Stream.

Data from:
  MB110
  Table 0
  Line 0:
Date:2019
Mass (g):110
Pieces:1
Class:L6
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):25.5±0.5
Ferrosilite (mol%):21.4±0.5
Wollastonite (mol%):1.6±0.2
Classifier:D. Sheikh, FSU
Type spec mass (g):21.3
Type spec location:UCLA
Main mass:Matthew Stream
Comments:Submitted by Daniel Sheikh
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1140 approved meteorites from Algeria (plus 27 unapproved names) (plus 4 impact craters)

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