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Northwest Africa 7059
Basic information Name: Northwest Africa 7059
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7059
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 11.73 kg
Meteoritical Bulletin:  MB 102  (2013)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 24 Apr 2013
Writeup from MB 102:

Northwest Africa 7059 (NWA 7059)

(Northwest Africa)

Purchased: 2008 Feb

Classification: Ureilite

History: Purchased by David Gregory at the Tucson Gem and Mineral Show in February 2008 and donated to the Royal Ontario Museum.

Petrography: (A. Irving and S. Kuehner, UWS) Coarse-grained, protogranular assemblage of olivine and pigeonite. Olivine exhibits dark, more magnesian rims containing abundant blebby metallic iron.

Geochemistry: Olivine (cores Fa21.1-21.7; rims Fa10.3-11.4; Cr2O3 = 0.6-0.9 wt.%), pigeonite (Fs17.2-17.7Wo7.4-7.3).

Classification: Ureilite

Specimens: 27 g of sample and one polished thin section are on deposit at UWB. The main mass is held by ROM.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2008 Feb
Mass (g):11730
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):21.1-21.7
Ferrosilite (mol%):17.2-17.7
Wollastonite (mol%):7.4-7.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):27
Type spec location:UWB
Main mass:ROM
Comments:Submitted by A. Irving
   and collections
ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Gregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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     This is 1 of 7009 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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