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Basic information Name: Fairburn
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1907
Country: United States
Mass:help 445 g
Meteoritical Bulletin:  MB 101  (2012)  Iron, IAB-ung
Recommended:  Iron, IAB-ung    [explanation]

This is 1 of 68 approved meteorites classified as Iron, IAB-ung.   [show all]
Search for other: IAB complex irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 18 Dec 2012
Writeup from MB 101:

Fairburn        43.603°N, 103.026° W

Custer County, South Dakota, USA

Found: 1907

Classification: Iron meteorite (IAB, ungrouped)

History: Found in 1907 by Otis Roberts in a railroad car transporting gravel for ballast quarried from terrace deposits of Pleistocene age on the west side of the Cheyenne River in Custer County, southeast of Rapid City, South Dakota (Ziegler, 1914, p. 54-58). The original 445 g mass described by Victor Ziegler was in the collection of the South Dakota School of Mines. In 1982 a 56 g portion was purchased by James M. DuPont, on which studies were conducted from 2004 to 2012.

Physical characteristics: A smooth, rounded ovoid silvery mass (445 g) with thin weathering patina and a specific gravity of 7.306.

Petrography: (G. Jerman, MSFC) The specimen is composed mostly of kamacite with some taenite and plessite. Some globular and ribbon-like schreibersite is present, but no silicates, sulfides or carbides were found. Kamacite bandwidth 1.34 mm (range 0.37-1.96, n=18).

Geochemistry: Trace elements (G. Chen and C. Herd, UAb) Analysis of a 3.1 g portion by ICP-MS using North Chile as internal standard gave: Ni=78.8, Co=5.3 (both mg/g); Cr=17, Cu=132, Ga=76.5, Ge=255, As=6.1, Ir=2.3; Pt=5.2, Au=1.49 (all μg/g), Sb=420, Re=220 (both ng/g).

Classification: Iron meteorite (IAB, ungrouped). Chemical data comparisons for possible matches to regional and other common irons were inconclusive.

Specimens: A total of 52 g is on deposit as part of the DuPont Collection owned by PSF.

  • Ziegler, V. (1914) The Minerals of the Black Hills. South Dakota School of Mines Bulletin No. 10, Department of Geology and Mineralogy, 255 p. (link)
Data from:
  Table 0
  Line 0:
State/Prov/County:South Dakota
Longitude:103.026° W
Mass (g):445
Class:Iron, IAB-ung
Shock stage:low
Weathering grade:low
Classifier:G. Jerman, MSFC; C.Herd, G. Chen and P. Strickland, UAb
Type spec mass (g):56
Type spec location:PSF
Main mass:PSF
Finder:Otis Roberts
Comments:Submitted by P. Sipiera
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
DuPont: James M. DuPont Meteorite Collection, Deposited at FMNH in 2008., United States (private address; updated 1 Jun 2012)
MSFC: NASA/George C. Marshall Space Flight Center, Huntsville, AL 35812, United States (institutional address)
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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United States
     Recommended::   (43° 36' 11"N, 103° 1' 34"W)

     This is 1 of 19 approved meteorites from South Dakota, United States
     This is 1 of 1919 approved meteorites from United States (plus 867 unapproved names) (plus 28 impact craters)
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