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Basic information Name: Cotopaxi
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2000
Country: United States
Mass:help 243 g
Meteoritical Bulletin:  MB 89  (2005)  IAB complex-ung
MetBase:  v. 7.1  (2006)  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
Writeup from MB 89:


Femont County, Colorado, USA

Found 10/08/2000

Iron (Ungrouped, IAB complex)

Richard and Sharon Walker found a single mass of 243 g while prospecting for gold samples on a forested hillside with a metal detector. The meteorite was buried about 20cm deep in soil under a small tree and the mass was intergrown with the tree roots. Classification and analysis (J. Wasson, UCLA): Metal composition determined by INAA is: Ni = 9.8%, Co = 0.50%, Ga = 48 mm/g, As = 17m g/g, Ir = 1.4 mg/g, Au = 1.7mg/g. The composition is unique compared to all other known meteorites. Cotopaxi is an ungrouped member of the IAB complex.  Type specimens: 21.43 g, UCLA; 20.33 g, Denver Museum of Nature and Science. Main mass (190 g): Denver Museum of Nature and Science DMNS.

   and collections
DMNS: Denver Museum of Nature and Science, 2001 Colorado Blvd., Denver, CO 80205, United States (institutional address; updated 28 Feb 2011)
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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United States
     Recommended::   (38° 27' 53"N, 105° 42' 5"W)

     This is 1 of 90 approved meteorites from Colorado, United States (plus 5 unapproved names)
     This is 1 of 1919 approved meteorites from United States (plus 867 unapproved names) (plus 28 impact craters)
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