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Northwest Africa 10695
Basic information Name: Northwest Africa 10695
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10695
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 103.4 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 372 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 1 Mar 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 10695 (NWA 10695)

(Northwest Africa)

Purchased: 2016 Feb

Classification: HED achondrite (Howardite)

History: Purchased by Aras Jonikas in February 2016 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed mainly of diogenite lithic clasts and related debris plus ~20 vol.% of basaltic eucrite clasts and ~3 vol.% of altered kamacite grains (up to 1 mm in size) in a finer grained matrix. Diogenitic orthopyroxene exhibits a range in composition. Other minerals are olivine, exsolved pigeonite, calcic plagioclase, silica polymorph, chromite, ilmenite, troilite, taenite and rare forsterite.

Geochemistry: Olivine (Fa28.1-31.0, FeO/MnO = 42-53, N = 2), diogenitic orthopyroxene (Fs23.0Wo1.9; Fs39.1Wo3.1; FeO/MnO = 29-30, N = 2), orthopyroxene host (Fs65.0Wo3.4, FeO/MnO = 31), clinopyroxene exsolution lamella (Fs32.4Wo39.9, FeO/MnO = 31), orthopyroxene host (Fs38.6Wo3.2, FeO/MnO = 29), clinopyroxene exsolution lamella (Fs18.2Wo40.9, FeO/MnO = 24), forsterite (Fa9.4, FeO/MnO = 43).

Classification: Howardite (anomalous, olivine-bearing, metal-rich). NWA 10695 is anomalous in having an unusually high content of metal.

Specimens: 20.0 g including one polished thin section at PSF; remainder with Mr. A. Jonikas.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2016 Feb
Mass (g):103.4
Pieces:1
Class:Howardite
Shock stage:low
Weathering grade:low
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:PSF
Main mass:A. Jonikas
Comments:AJ16-5; submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2027 unapproved names)

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