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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:
Recommended:  Diogenite    [explanation]

This is 1 of 481 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 Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8037 approved meteorites from (Northwest Africa) (plus 1947 unapproved names)

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