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Northwest Africa 13137
Basic information Name: Northwest Africa 13137
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13137
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 1382 g
Classification
  history:
Recommended:  H5-melt breccia    [explanation]

This is 1 of 33 approved meteorites classified as H5-melt breccia.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 9 Feb 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13137 (NWA 13137)

(Northwest Africa)

Purchased: 2019

Classification: Ordinary chondrite (H5, melt breccia)

History: Purchased in 2019 by Geologist Juan Aviles Poblador from a nomadic dealer in Morocco.

Physical characteristics: Two stones with dark-brown fusion crust.

Petrography: (D. Sheikh, FSU) Chondrules absent. Sample is a breccia composed of angular clasts (up to 3 cm) set in a melt rock matrix containing FeNi metal, troilite, and chromite. Recrystallized plagioclase (~10 µm) present.

Geochemistry: Olivine (Fa18.0±0.6, n=40), Low-Ca Pyroxene (Fs16.4±0.6Wo1.1±0.2, n=40).

Classification: Ordinary Chondrite (H5, melt breccia).

Specimens: 58.72 g at UCLA; main mass with Juan Aviles Poblador.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019
Mass (g):1382
Pieces:2
Class:H5-melt breccia
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):18.0±0.6
Ferrosilite (mol%):16.4±0.6
Wollastonite (mol%):1.1±0.2
Magnetic suscept.:5.57
Classifier:D. Sheikh, FSU
Type spec mass (g):58.72
Type spec location:UCLA
Main mass:Juan Aviles Poblador
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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Photos:
CreditPhotos
Public domain photographs:
Daniel Sheikh   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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