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Northwest Africa 5144
Basic information Name: Northwest Africa 5144
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5144
Observed fall: No
Year found: 2007
Country: (Northwest Africa)
Mass:help 75 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 660 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 12 Nov 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 5144 (NWA 5144)

(Northwest Africa)

Purchased: 2007 Sept

Classification: Ureilite

History: Purchased by Thomas Webb in September 2007 from a dealer in Taliouine, Morocco.

Physical characteristics: A dense, dark brown stone that was very difficult to cut.

Petrography: (A. Irving and S. Kuehner, UWS) Equigranular aggregate of olivine (exhibiting reduced rims associated with fine-grained iron metal) and pigeonite. Minor secondary barite is present on some grain boundaries.

Geochemistry: Olivine (cores Fa15.5-15.7, rim Fa4.7; Cr2O3 = 0.7 wt.%), pigeonite (Fs12.8-13.0Wo8.7-8.6).

Classification: Ureilite

Specimens: 13.7 g at App, 1.5 g are at UWB, 0.1 g at AMSA. The remaining material is held by TWebb.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Taliouine
Date:P 2007 Sept
Mass (g):75
Pieces:1
Class:Ureilite
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):15.5-15.7
Ferrosilite (mol%):12.8-13.0
Wollastonite (mol%):8.7-8.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):15.3
Type spec location:App, UWB, AMSA
Main mass:TWebb
Comments: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)
AMSA: Australian Museum, 6 College Street, Sydney, NSW 2010, Australia (institutional address; updated 18 Oct 2011)
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
TWebb: No contact information provided., United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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