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Northwest Africa 6515 | |||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6515 This is an OFFICIAL meteorite name. Abbreviation: NWA 6515 Observed fall: No Year found: 2010 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||
Classification history: |
This is 1 of 625 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||
Comments: | Approved 27 May 2011 | ||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 99:
Northwest Africa 6515 (NWA 6515) (Northwest Africa) Purchased: 2010 Classification: Ureilite History: Purchased by Ke Zuokai from a meteorite dealer. The stone is covered by fresh fusion crust. Petrography: Large grains of pigeonite (Fs14.2Wo12.1) and olivine (Fa5.3-17.3) with reduced rims set in a matrix of pigeonite (Fs10.2Wo6.8), augite, olivine, troilite, and Fe-Ni-metal. The cores of olivine grains are homogeneous with ~Fa17.1, whereas rims near matrix are magnesium-rich with average ~Fa8.8. Graphite is present at grain boundaries. Numerous oxide veins and carbonate grains are observed. | ||||||||||||||||||||||||
Data from: MB99 Table 0 Line 0: |
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Institutions and collections |
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Geography: |
Statistics: This is 1 of 9042 approved meteorites from (Northwest Africa) (plus 1870 unapproved names) |