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Northwest Africa 13692
Basic information Name: Northwest Africa 13692
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13692
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 950 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 524 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 21 Feb 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13692 (NWA 13692)

(Northwest Africa)

Purchased: 2020

Classification: HED achondrite (Diogenite)

History: Purchased in 2020 by Noreddine Azelmat from a meteorite dealer in Morocco.

Physical characteristics: Specimen displays a weathered fusion crust.

Petrography: (D. Sheikh, FSU) Specimen is a breccia primarily composed of angular grains of orthopyroxene (~1 mm, up to 2 mm) set in a finer-grained matrix of similar composition. Accessory phases include chromite and troilite.

Geochemistry: Orthopyroxene (Fs23.1±0.3Wo1.7±0.2, range Fs22.3-23.7Wo1.5-2.0, Fe/Mn = 26±4, n=26), Chromite (Cr/(Cr+Al) = 0.76±0.01, n=5).

Classification: HED achondrite (Diogenite)

Specimens: 20.3 g at UCLA, main mass with Noreddine Azelmat.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020
Mass (g):950
Pieces:many
Class:Diogenite
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):23.1±0.3
Wollastonite (mol%):1.7±0.2
Classifier:D. Sheikh, FSU
Type spec mass (g):20.3
Type spec location:UCLA
Main mass:Noreddine Azelmat
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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Sergey Vasiliev   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9746 approved meteorites from (Northwest Africa) (plus 1855 unapproved names)

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