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Northwest Africa 8056
Basic information Name: Northwest Africa 8056
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8056
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 1560 g
Meteoritical Bulletin:  MB 103  (2014)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 3 Aug 2014
Writeup from MB 103:

Northwest Africa 8056 (NWA 8056)

(Northwest Africa)

Purchased: 2013 Aug

Classification: HED achondrite (Eucrite)

History: Two very similar stones (960g, 600 g) were purchased together in Temara, Morocco, by A. Aaronson, who provided portions of both stones as type material.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia composed predominantly of gabbroic eucrite clasts in a sparse matrix of related debris. Minerals are exsolved pigeonite (with variable red-brown staining), calcic plagioclase (polycrystalline, birefringent), silica polymorph, ilmenite, Ti-rich chromite, Ti-poor chromite, troilite and minor secondary barite.

Geochemistry: Orthopyroxene host (Fs60.1-62.3Wo3.6-1.9, FeO/MnO =29-31), clinopyroxene exsolution lamellae (Fs26.7-27.5Wo43.4-42.0, FeO/MnO = 27-31).

Classification: Eucrite (polymict, gabbroic). Based on primary textures, shock features and style of weathering, this material is likely paired with NWA 7989 and NWA 8036.

Specimens: A total of 20.1 g including one polished thin section at UWB. The remaining material is held by Aaronson.

Data from:
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2013 Aug
Mass (g):1560
Shock stage:moderate
Weathering grade:moderate
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.1
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1603; 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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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     This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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