|Basic information||Name: Domeyko|
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2000
Mass: 13.88 kg
This is 1 of 301 approved meteorites classified as Iron, IIIAB. [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
|Comments:||Approved 27 Jul 2013|
Writeup from MB 102:
Domeyko 24°13’6.25"S, 69° 5’23.72"W
Classification: Iron meteorite (IIIAB)
History: A mass of 13880 g was found by Luc Labenne at Estación Zaldivar near la Mina Escondida while hunting for pallasites near the Imilac strewnfield.
Physical characteristics: The mass has the average dimension of 270 × 190 × 10 mm. The top is covered by pockmarks, with small wide pits and sharp ridges characteristic of sand-blasted Chilean irons. On the top a few large depressions indicate the location of troilite nodules. On the opposite side that was next to the ground the pockmarks are absent.
Petrography: Examined slab about 15 × 5 cm. Uniform Widmanstätten pattern with bandwidth 0.7 mm. Two FeS nodules (diameters 20 and 13 mm) and three long (26 to 31 mm) Brezina lamellae. Plessite is mainly fine, granular. Significant exterior weathering but interior relatively fresh; no heat-altered zone.
Geochemistry: (J.T. Wasson, UCLA) Composition: 5.53 mg/g Co, 94.8 mg/g Ni, 19.2 μg/g Ga, <50 μg/g Ge, 16.7 μg/g As, 0.057 μg/g Ir, and 1.848 μg/g Au. Based on the composition and structure, the iron belongs to group IIIAB. The nearest relatives of Domeyko are Hardesty (Ir = (0.088 μg/g) and Sanderson (Ir = 0.025 μg/g) but it is well resolved in Ir content from these.
Classification: Iron, IIIAB.
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
|References:||Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015|
This is 1 of 909 approved meteorites from Antofagasta, Chile (plus 1 impact crater)
This is 1 of 934 approved meteorites from Chile (plus 9 unapproved names) (plus 1 impact crater)
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