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Northwest Africa 8718 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8718 This is an OFFICIAL meteorite name. Abbreviation: NWA 8718 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: 98 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 12780 approved meteorites (plus 11 unapproved names) classified as L6. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||
Comments: | Approved 16 Jan 2015 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 104:
Northwest Africa 8718 (NWA 8718) (Northwest Africa) Purchased: 2014 Classification: Ordinary chondrite (L6) History: One subrounded stone weighing 98 g was found in Morocco in 2014. David Holden acquired the sample from a meteorite prospector in Erfoud, 2014. Physical characteristics: The stone is brown and has a rounded shape displaying several small, shallow regmaglypts. There is no relict fusion crust remaining on the exterior. A prominant shock vein is visible on the outer surface. The cut face of the interior of the stone is orangish-brown and shows chondrules, clasts and fresh flakes of metal. Petrography: Description and classification (A. Love, App): Sample displays recrystallized chondritic texture crosscut by glassy, ringwoodite-bearing shock veins. Few chondrules are defined yet have maskelynitized mesostasis and have an average diameter of 1154 μm. Sample contains maskelynite and troilite showing strong polycrystallinity. Geochemistry: (A.Love, App) Fa25.4±0.3, N=18; Low Ca pyroxene Fs21.8±0.4Wo2.3±0.3, N=12. Classification: Ordinary Chondrite (L6, S6, W2). Specimens: Two slices weighing 23.34 g and a polished thin section are currently on deposit at App. | ||||||||||||||||||||||||||||||||
Data from: MB104 Table 0 Line 0: |
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Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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