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Northwest Africa 6345 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6345 This is an OFFICIAL meteorite name. Abbreviation: NWA 6345 Observed fall: No Year found: 2010 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 391 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||
Comments: | Approved 19 Sep 2011 | ||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 100:
Northwest Africa 6345 (NWA 6345) (Northwest Africa) Purchased: 2010 Jun Classification: HED achondrite (Eucrite, polymict) Petrography: (A. Irving and S. Kuehner, UWS): Polymict breccia composed mostly of basaltic eucrite clasts and debris, with sparse diogenitic clasts. Geochemistry: Minerals include exsolved pigeonite (clinopyroxene lamellae within orthopyroxene host, and vice versa), diogenitic orthopyroxene, calcic plagioclase, silica polymorph, ilmenite and troilite. Exsolved pigeonite contains orthopyroxene (Fs53.9-64.4Wo2.3-1.9; FeO/MnO = 32.4-36.1) and clinopyroxene (Fs23.0-28.8Wo42.6; FeO/MnO = 30.6-31.7); diogenitic orthopyroxene is Fs26.5-26.6Wo3.7; FeO/MnO = 27.4-30.3). | ||||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1355: |
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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 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |