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Northwest Africa 10070
Basic information Name: Northwest Africa 10070
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10070
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 82.4 g
Meteoritical Bulletin:  MB 104  (2015)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 272 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 1 May 2015
Writeup from MB 104:

Northwest Africa 10070 (NWA 10070)

(Northwest Africa)

Purchased: 2014 Jun

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Darryl Pitt in June 2014 from a dealer in Mauritania.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia composed of relatively coarse (up to 3 mm), angular grains of exsolved pigeonite and plagioclase (plus rare composite lithic clasts preserving primary grain contacts) within a finer matrix of the same minerals, ilmenite, Ti-chromite, troilite and rare baddeleyite.

Geochemistry: Orthopyroxene host (Fs42.0-43.1Wo3.0-2.6, FeO/MnO = 31-32, N = 3), clinopyroxene exsolution lamellae (Fs17.9-18.5Wo42.9-42.4, FeO/MnO = 26-27, N = 3).

Classification: Eucrite (monomict breccia, gabbroic).

Specimens: 16.5 g including one polished thin section at UWB. The remainder is held by DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2014 Jun
Mass (g):82.4
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):42.0-43.1; 17.9-18.5
Wollastonite (mol%):3.0-2.6; 42.9-42.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):16.5
Type spec location:UWB
Main mass:D. Pitt
Comments:MAC 82; 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 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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