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Northwest Africa 10975
Basic information Name: Northwest Africa 10975
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10975
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 370 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 455 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 17 Dec 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10975 (NWA 10975)

(Northwest Africa)

Purchased: 2016 May

Classification: HED achondrite (Diogenite)

History: Purchased by Ben Hoefnagels in May 2016 from a dealer in Taliouine, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of closely packed, fairly coarse, diogenitic orthopyroxene grains with accessory chromite, silica polymorph and troilite.

Geochemistry: Orthopyroxene (Fs27.4-27.5Wo3.6-3.9, FeO/MnO = 24-29, N = 3), clinopyroxene (Fs11.5-11.8Wo43.9-44.0, FeO/MnO = 17-19, N = 2).

Classification: Diogenite (breccia).

Specimens: 20.6 g including one polished thin section at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Taliouine
Date:P 2016 May
Mass (g):370
Pieces:1
Class:Diogenite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):27.4-27.5; 11.5-11.8
Wollastonite (mol%):3.6-3.9; 43.9-44.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.6
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:BH022; submitted by A. Irving
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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