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Northwest Africa 11446 | |||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11446 This is an OFFICIAL meteorite name. Abbreviation: NWA 11446 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: 13 kg | ||||||||||||||||||||||
Classification history: |
This is 1 of 148 approved meteorites classified as Iron, IIAB. [show all] Search for other: IIAB irons, Iron meteorites, and Metal-rich meteorites | ||||||||||||||||||||||
Comments: | Approved 13 Oct 2017 | ||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 11446 (NWA 11446) (Northwest Africa) Purchased: 2015 Jan 08 Classification: Iron meteorite (IIAB) History: no writeup Petrography: Iron is a hexahedrite. It contains three round FeS nodules in an area of ~150 cm2. Fragmental schreibersites 0.2 to 1 mm long are in rough arrays. There is discoloration indicating some reheating in the event that fragmented the schreibersites. In regions not discolored there are many tiny rhabdites 0.2 to 0.1 mm in length. Weathering is minor. but no reheated zone was recognized. Geochemistry: Composition: Co, 4.50 mg/g; Ni, 56.1 mg/g; Ga, 58.0 μg/g; Ge, ~153 μg/g; As, 4.16 μg/g; W, 3.12 μg/g; Ir 11.4 μg/g; Au, 0.548 μg/g. Classification: Meteorite is a IIAB iron, towards the upper end of the Ir range. Based on its composition, it is paired with NWA 3202. | ||||||||||||||||||||||
Data from: MB106 Table 0 Line 0: |
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Institutions 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) Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010) |
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Catalogs: |
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References: | Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||
Crosslinks: |
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Revision history: |
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