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Northwest Africa 8156
Basic information Name: Northwest Africa 8156
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8156
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 6.5 kg
Meteoritical Bulletin:  MB 102  (2013)  Iron, IVA
Recommended:  Iron, IVA    [explanation]

This is 1 of 83 approved meteorites (plus 1 unapproved name) classified as Iron, IVA.   [show all]
Search for other: Iron meteorites, IVA irons, and Metal-rich meteorites
Comments: Approved 2 Jan 2014
Writeup from MB 102:

Northwest Africa 8156 (NWA 8156)

(Northwest Africa)

Purchased: 2011

Classification: Iron meteorite (IVA)

History: The iron was purchased from a Russian meteorite dealer at the Tucson mineral show in 2011.

Petrography: Finest octahedrite, bandwidth 1.8±0.3, just below the Off-Of boundary. Relatively unweathered; hint of heat-altered zone. Small schreibersite crystals at intersection of kamacite bands. Some 0.4-0.3 mm rectangular crystals, currently unidentified; these may be oxides.

Geochemistry: (J. T. Wasson, UCLA) Composition by INAA: 4.32 mg/g Co, 123 mg/g Ni, 1.9 μg/g Ga, <12 μg/g Ge, 15.7 μg/g As, 0.456 μg/g Ir, and 2.87 μg/g Au. It is the high-Au end member of group IVA; it has the highest observed Au, As and Ni and the second highest Co, 1% lower than that in Kharga (reportedly found on the other side of the Sahara).

Specimens: 66.6 g at UCLA

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson, from Russian dealers
Date:P 2011
Mass (g):6500
Class:Iron, IVA
Weathering grade:low
Classifier:J. T. Wasson, UCLA
Type spec mass (g):66.6
Type spec location:UCLA
Main mass:Utas
Comments: ; submitted by J. T. Wasson
   and collections
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. 102, MAPS 50, 1662, September 2015
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     This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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