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Northwest Africa 13524
Basic information Name: Northwest Africa 13524
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13524
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 123 g
Classification
  history:
Recommended:  LL6    [explanation]

This is 1 of 2843 approved meteorites (plus 1 unapproved name) 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 11 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13524 (NWA 13524)

(Northwest Africa)

Find: 2019

Classification: Ordinary chondrite (LL6)

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

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

Petrography: (D. Sheikh, FSU) Sample is an ordinary chondrite composed of few blurred chondrules set in a fine-grained recrystallized matrix containing secondary recrystallized plagioclase (55±5 μm). Accessory phases include Fe-Ni metal, troilite, chromite (some Ti-rich), and iron oxides.

Geochemistry: Olivine (Fa27.5±0.4, range Fa26.5-28.2, n=30), Low-Ca pyroxene (Fs23.0±0.6Wo1.6±0.4, range Fs22.2-24.6Wo1.1-2.5, n=11).

Classification: Ordinary Chondrite (LL6)

Specimens: 20.3 g at UCLA; main mass with Matthew Stream.

Data from:
  MB109
  Table 0
  Line 0:
Date:2019
Mass (g):123
Pieces:1
Class:LL6
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):27.5±0.4
Ferrosilite (mol%):23.0±0.6
Wollastonite (mol%):1.6±0.4
Classifier:D. Sheikh, FSU
Type spec mass (g):20.3
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. 109, in preparation (2020)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8138 approved meteorites from (Northwest Africa) (plus 1941 unapproved names)

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