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| Northwest Africa 8442 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 8442 This is an OFFICIAL meteorite name. Abbreviation: NWA 8442 Observed fall: No Year found: 2012 Country: (Northwest Africa) Mass:  2.23 kg | ||||||||||||||||||||
| Classification history: |
This is 1 of 343 approved meteorites classified as Iron, IIIAB. [show all] Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites | ||||||||||||||||||||
| Comments: | Approved 6 Jun 2014 | ||||||||||||||||||||
| Writeup |
Writeup from MB 103:
Northwest Africa 8442 (NWA 8442) (Northwest Africa) Purchased: June 2012 Classification: Iron meteorite (IIIAB) Petrography: The examined polished surface has an area of about 15 cm2; an additional 30 cm2 is sawed surface with features >0.4 mm across visible. Meteorite is moderately weathered with oxidation revealing the kamacite bandwidth to be about 1.2±0.2 mm, similar to the highest in IIIAB. On the polished surface no inclusions >0.1 mm in maximum dimensions were observed; in the remaining 30 cm2 no inclusions >0.4 mm were observed. Geochemistry: Composition: Co, 5.02 mg/g; Ni, 79.8 mg/g; Ga, 20.4 μg/g; Ge, <54 μg/g; As, 5.29 μg/g; Ir, 2.82 μg/g; and Au, 0.707 μg/g. All elements plot within IIIAB fields. Classification: There are no known close NWA relatives; the nearest are the "Tata" irons (NWA 1430, etc.) The composition is similar to al-Ghanim (iron) and unresolvable from that of Rowton. | ||||||||||||||||||||
| Data from: MB103 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) |
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| References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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| Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||
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| Also see: |
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| Revision history: |
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