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Whitecourt
Basic information Name: Whitecourt
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2007
Country: Canada
Mass:help 5.37 kg
Classification
  history:
Meteoritical Bulletin:  MB 94  (2008)  IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 299 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Metal-rich meteorites, and Iron meteorites
Comments: Approved 17 Apr 2008
Revised 3 Oct 2009: Added missing coords
Writeuphelp
Writeup from MB 94:

Whitecourt                 53°59.95N, 115°35.85W

Alberta, Canada

Find: 1 July 1 2007

Iron, medium octahedrite (IIIAB)

History: Four small fragments were found buried adjacent to a circular depression by two local residents using a metal detector. The circular depression was subsequently confirmed as a 36 m diameter Late Holocene impact crater based on morphology, identification of impact ejecta and crater fill, and presence of impact melt (C. Herd and D. Froese, University of Alberta), and further fragments were recovered.

Physical characteristics: The meteorite consists of 74 samples with a total mass of 5372 g. The samples were found buried up to 25 cm and have a red-brown exterior.

Petrography: (C. Herd, University of Alberta, UAb) Widmanstätten pattern with an average bandwidth of 0.8 ± 0.2 mm and areas of plessite are evident on polished and etched surfaces. Locally, kamacite lamellae are coarser and taenite lamellae are offset as a result of shock deformation and recrystallization. Rare Fe-Ni phosphide inclusions are present.

Mineral compositions and geochemistry: Bulk composition: INAA data (J. Duke, UAb): Ni = 8.11 ± 0.13 wt%, Co = 4950 ± 100 μg/g, Ir 10.3 ± 0.5 μg/g, (uncertainties 1σ, 68% confidence level), Ge 40 μg/g, indicate the IIIAB group.

Classification: Iron, IIIAB medium octahedrite, extensive shock, moderate weathering.

Type specimens: A total of 2.4 kg is on deposit at UAb. The remainder of the known material is held by the anonymous finders.

Data from:
  MB94
  Table 3
  Line 5:
State/Prov/County:Alberta, Canada
Date:1-July-2007
Latitude:53°59.95'N
Longitude:115°35.85'W
Mass (g):5372
Pieces:74
Class:IIIAB
Classifier:C. Herd, Uab
Type spec mass (g):2400
Type spec location:University of Alberta (Uab)
Comments:Ni = 8.11 ± 0.13 wt%, Co = 4950 ± 100 mg/g, Ir 10.3 ± 0.5 mg/g, Ge £ 40 mg/g
Institutions
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
University of Alberta   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Achim Faforke   
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xeqtr   
Geography:

Canada
Coordinates:
     Recommended::   (53° 59' 57"N, 115° 35' 51"W)

Statistics:
     This is 1 of 16 approved meteorites from Alberta, Canada (plus 3 impact craters)
     This is 1 of 62 approved meteorites from Canada (plus 5 unapproved names) (plus 31 impact craters)
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