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Northwest Africa 10124
Basic information Name: Northwest Africa 10124
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10124
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 392 g
Meteoritical Bulletin:  MB 104  (2015)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 427 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 23 May 2015
Writeup from MB 104:

Northwest Africa 10124 (NWA 10124)

(Northwest Africa)

Purchased: 2014 Dec

Classification: HED achondrite (Howardite)

History: Purchased by Darryl Pitt in December 2014 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia composed mostly of angular mineral clasts of calcic plagioclase, exsolved pigeonite, silica polymorph, ferroan olivine, ferrosilite, ferropigeonite, augite, chromite, ilmenite and troilite, plus ~20 vol.% diogenitic orthopyroxene, in a finer grained matrix. Sparse basaltic eucrite lithic clasts are also present.

Geochemistry: Olivine (Fa73.9-74.4, FeO/MnO = 40-41, N = 2), diogenitic orthopyroxene (22.1-23.3Wo2.7-2.2, FeO/MnO = 30-34, N = 2), orthopyroxene host (Fs56.7Wo1.4, FeO/MnO = 38), clinopyroxene exsolution lamella (Fs24.3Wo43.9, FeO/MnO = 31), ferrosilite (Fs49.9Wo4.9, FeO/MnO = 30), ferropigeonite (Fs59.6Wo15.2, FeO/MnO = 33), augite (Fs22.9Wo42.0, FeO/MnO = 31).

Classification: Howardite.

Specimens: 20.2 g including one polished thin section at UWB. The remainder is held by DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2014 Dec
Mass (g):391.8
Shock stage:low
Weathering grade:low
Fayalite (mol%):73.9-74.4
Ferrosilite (mol%):22.1-23.3; 56.7; 24.3
Wollastonite (mol%):2.7-2.2; 1.4; 43.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.2
Type spec location:UWB
Main mass:DPitt
Comments:MAC 113; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 8744 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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