|Basic information||Name: Las Cruces|
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2001
Mass: 528 g
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 23 Aug 2012|
Writeup from MB 101:
Las Cruces 23°22’59.36"S, 70°35’9.77"W
Classification: Iron, IIIAB
History: A mass of 528 g was found by Jim Labenne in a place named Las Cruces, 16 km east of the Antofagasta Airport.
Physical characteristics: The mass has the average dimension of 100 × 50 × 30 mm. The top is covered by pockmarks, with small wide pits with sharp ridges characteristic of irons from the Atacama Desert. On the top one large depression clearly indicates the former location of a large troilite nodule.
Petrography: Small section 30 × 25 mm examined. Medium octahedrite with bandwidth 0.8 mm. Few inclusions. No FeS recognized. Small schreibersites inside kamacite bands near band intersections, two larger (1-3 mm) outside kamacite. Little weathering but no heat altered zone recognized.
Geochemistry: Composition: 5.32 mg/g Co, 91.5 mg/g Ni, 20.6 μg/g Ga, <50 μg/g Ge, 12.5 μg/g As, 0.177 μg/g Ir, and 1.459 μg/g Au. Based on the composition and structure, the iron belongs to group IIIAB. Las Cruces is resolved from Los Reyes (Ir = 0.128 μg/g) in terms of Ir but cannot be compositionally resolved from the observed fall Juromenha.
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. 101, MAPS 50, 1661, September 2015|
This is 1 of 925 approved meteorites from Antofagasta, Chile (plus 1 impact crater)
This is 1 of 950 approved meteorites from Chile (plus 9 unapproved names) (plus 1 impact crater)
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