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| Northwest Africa 8444 | |||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 8444 This is an OFFICIAL meteorite name. Abbreviation: NWA 8444 Observed fall: No Year found: 2013 Country: Western Sahara Mass:  10.87 kg | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 319 approved meteorites classified as Iron, IIIAB. [show all] Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites | ||||||||||||||||||||||||
| Comments: | Approved 16 Jun 2014 | ||||||||||||||||||||||||
| Writeup |
Writeup from MB 103:
Northwest Africa 8444 (NWA 8444) Western Sahara Purchased: Apr 2013 Classification: Iron meteorite (IIIAB) History: One specimen (1406 g) found ~60 km northeast of Boujdour was purchased by Marc Jost in April 2013 was cut for classification. A second (9460 g) mass identical in external appearance was found in the same area in November 2013 by Aziz Mouadine. Physical characteristics: Specimens show very little evidence of terrestrial alteration or weathering. Petrography: Optical investigation reveals a well-developed Widmanstätten pattern consistent with a medium octahedrite. Some areas of plessite are visible. Geochemistry: Bulk composition: INAA data (J. Duke and C. Herd, UAb): Ni = 7.07±0.07 wt%, Co = 0.497±0.003 wt%; Ir = 7.40±0.08, Au = 0.550 ± 0.009, Ga = 18.0 ± 0.8, As = 3.35±0.12, W = 0.99±0.09, Re = 0.80±0.03, Cr = 170±15, Cu = 174±15, Ge = 78±25 (all μg/g). Classification: (C. Herd, UAb): IIIAB, medium octahedrite. Trace element composition consistent with IIIAB chemical group. Specimens: Type specimen of 33.6 g, including slice used for INAA, at UAb. The 1406 g specimen with M. Jost, SJS. The 9460 g specimen is with Aziz Mouadine, Klagenfurt, Austria. | ||||||||||||||||||||||||
| Data from: MB103 Table 0 Line 0: |
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| Institutions and collections |
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011) SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010) |
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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:
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Statistics: This is 1 of 227 approved meteorites from Western Sahara (plus 19 unapproved names) | ||||||||||||||||||||||||