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Northwest Africa 6949 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6949 This is an OFFICIAL meteorite name. Abbreviation: NWA 6949 Observed fall: No Year found: 2011 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 49 approved meteorites classified as Winonaite. [show all] Search for other: Primitive achondrites, Winonaites | ||||||||||||||||||||||||||||||
Comments: | Approved 23 Apr 2012 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 100:
Northwest Africa 6949 (NWA 6949) (Northwest Africa) Purchased: Aug 2011 Classification: Primitive achondrite (Winonaite) Petrography: Metamorphic texture with many 120° triple junctions and fairly abundant holly-leaf-shaped grains of metal (mostly taenite with some altered kamacite). Mafic silicate minerals are Mg-rich; heterogeneously distributed sodic plagioclase and chlorapatite. Geochemistry: Olivine (Fa1.8-2.2, Fe/Mn=5-6), diopside (Fs1.1-2.1Wo45.9-43.8), enstatite (Fs1.5-5.5Wo1.2-1.4). | ||||||||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1550: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography: |
Statistics: This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names) |