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Northwest Africa 13744
Basic information Name: Northwest Africa 13744
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13744
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 2.79 kg
Classification
  history:
Recommended:  Diogenite    [explanation]

This is 1 of 518 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 25 Apr 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13744 (NWA 13744)

(Northwest Africa)

Purchased: 2015

Classification: HED achondrite (Diogenite)

History: Type specimen donated to Cascadia by Mohammed Hmani at the Tucson Gem Show in 2020.

Physical characteristics: Physical Characteristics: Single pale yellow-orange-colored stone partially covered with black fusion crust and speckled with black pyroxene gains up to 2 mm across.

Petrography: (M. Hutson, A. Ruzicka, Cascadia): In thin section, coarse-grained material forms poorly defined clasts separated by finer-grained cataclastic zones. Orthopyroxene and calcic clinopyroxene grains, and accessory chromite are present. Clinopyroxene is mostly present as individual grains, but also as exsolution lamellae in low-Ca pyroxene.

Geochemistry: Mineral compositions and geochemistry: Low-Ca pyroxene: Fs27.4±0.3Wo2.6±0.8, Fe/Mn=26.1, Fe/Mg=0.391, N=33; High-Ca pyroxene Fs10.4±0.4Wo44.2±0.4, N=7; Chromite: MG# 16.2±1, CR# 74.2±1.2, N=8.

Classification: Diogenite based on mineralogy and mineral compositions.

Specimens: Cascadia holds 34.8 g in one piece, as well as a polished thin section and butt.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015
Mass (g):2790
Pieces:1
Class:Diogenite
Ferrosilite (mol%):27.7±0.3 (N=33)
Wollastonite (mol%):2.6±0.8 (N=33)
Classifier:M. Hutson and A. Ruzicka, Cascadia
Type spec mass (g):34.8
Type spec location:Cascadia
Main mass:HMANI Inc.
Comments:Lab number CML 1319, HMANI identification Tuc 02; submitted by Melinda Hutson
Institutions
   and collections		 Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address)
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
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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