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Northwest Africa 8568 | |||||||||||||||||||
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Basic information | Name: Northwest Africa 8568 This is an OFFICIAL meteorite name. Abbreviation: NWA 8568 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: 3.2 kg | ||||||||||||||||||
Classification history: |
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 17 Oct 2014 | ||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 8568 (NWA 8568) (Northwest Africa) Purchased: 2014 Classification: Iron meteorite (IVA) History: Purchased in 2014 by Don Hurkot from Labenne, who acquired it in 2012 from a nomad in Algeria. Physical characteristics: Single iron mass with oxidized exterior, centimeter-sized regmaglypts; specimen is 14 × 10 × 3.5 cm. Petrography: (C. Agee, UNM) This iron meteorite consists primarily of kamacite with minor amounts of taenite. Taenite often occurs as isolated skeletal inclusions 5-50 μm wide, up to 1 mm long, within host kamacite. Etched surface on 60 mm × 30-20 mm slab shows kamacite bands with apparent width 0.3-0.5 mm. Neumann lines. Geochemistry: Bulk composition, ICP-MS (C. Herd and G. Chen, UAb): Ni ? 5.1, Co 0.26 (all wt%); Ga 2.2, As 4.7, Mo 5.6, Ru 3.6, Pd 3.6, W 0.6, Ir 2.0, Au 1.8 (all ppm). EMPA, focused beam (C. Agee and N. Muttik, UNM): kamacite Fe 94.03±0.74, Ni 7.01±0.09, Co 0.45±0.08 (wt%), n=6; taenite Fe 75.86±6.37, Ni 23.60±6.09, Co 0.21±0.11 (wt%), n=3. Classification: Bulk data by ICP-MS and structural classification are consistent with a IVA iron. Iron meteorite (IVA). Fine octahedrite. Specimens: 21.6 g on deposit at UNM, KD Meteorites holds 306.6 g, Don Hurkot holds the main mass. | ||||||||||||||||||
Data from: MB103 Table 0 Line 0: |
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Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011) Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012) |
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Catalogs: |
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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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Photos: |
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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