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Northwest Africa 1913
Basic information Name: Northwest Africa 1913
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1913
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 731 g
Classification
  history:
Meteoritical Bulletin:  MB 88  (2004)  Ureilite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 594 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Writeuphelp
Writeup from MB 88:

Northwest Africa 1913

Morocco

Found 2001

Achondrite (ureilite)

A 731 g complete and partially crusted stone was purchased in Erfoud in 2002. Classification and mineralogy (T. Bunch and J. Wittke, NAU): typical ureilite texture with preferred orientation of elongated silicates. Mineral modes: olivine 68 vol%, and pigeonite 32 vol%. Olivine cores, Fa19.2-19.6 and reduced rims, Fa1.5-3.0. Pigeonite, mostly Fs17Wo11. Metal along grain boundaries is 9.3 wt% Ni; and metal together with pyrrhotite as inclusions in pigeonite, is 3.6 wt% Ni, Carbonaceous matter is present at grain boundaries, there is no evidence of diamonds. Shock level, S1; weathering grade, W2. Specimens: type specimen, 21.2 g, NAU; main mass, Boswell.

Data from:
  MB88
  Table 4
  Line 80:
Place of purchase:Erfoud
Date:P 2002
Mass (g):731
Pieces:1
Class:Ure
Classifier:T. Bunch and J. Wittke, NAU
Type spec mass (g):21.2
Type spec location:ASU
Main mass:Boswell
Institutions
   and collections
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8025 approved meteorites from (Northwest Africa) (plus 1951 unapproved names)

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