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Northwest Africa 10837
Basic information Name: Northwest Africa 10837
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10837
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 65 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 630 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 22 Oct 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10837 (NWA 10837)

(Northwest Africa)

Purchased: 2016 May

Classification: Ureilite

History: Purchased by Darryl Pitt in May 2016 from a Moroccan dealer in Copenhagen.

Petrography: (A. Irving and S. Kuehner, UWS) Protogranular aggregate of olivine (~60 vol.%) and pigeonite (~40 vol.%). Olivine has narrow, reduced magnesian rims and pigeonite contains more magnesian, curvilinear bands. Narrow zones of Fe metal occur along grain margins.

Geochemistry: Olivine (Fa22.9-23.1; rim Fa10.5; N = 3), pigeonite (Fs18.4-18.7Wo11.6-11.5; band Fs8.7Wo13.4; N = 3).

Classification: Ureilite.

Specimens: 13.21 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Copenhagen
Date:P 2016 May
Mass (g):65
Pieces:1
Class:Ureilite
Shock stage:high
Weathering grade:low
Fayalite (mol%):22.9-23.1
Ferrosilite (mol%):18.4-18.7
Wollastonite (mol%):11.6-11.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):13.21
Type spec location:UWB
Main mass:D. Pitt
Comments:MCVH 101; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
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 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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