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Northwest Africa 6171 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6171 This is an OFFICIAL meteorite name. Abbreviation: NWA 6171 Observed fall: No Year found: 2009 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 89 approved meteorites classified as Lodranite. [show all] Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 24 Oct 2011 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 100:
Northwest Africa 6171 (NWA 6171) (Northwest Africa) Purchased: 2009 Dec Classification: Primitive achondrite (Lodranite) Petrography: Fragmental breccia composed of coarse mineral and some polycrystalline clasts (up to 3 mm across) with finer interstitial debris of the same phases together with minor altered metal. Major minerals are olivine (FeO/MnO=23.2-24.3) and orthopyroxene (FeO/MnO=13-18), with subordinate clinopyroxene (some as exsolution lamellae in orthopyroxene; FeO/MnO=13-22) and chromite. Olivine grains contain characteristic small, irregularly-shaped polycrystalline inclusions composed mainly of pyroxene+chromite+pentlandite. Likely paired with NWA 4478, NWA 4875, NWA 4933, NWA 5403, NWA 5488 and NWA 6075. | ||||||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1296: |
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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) TWebb: No contact information provided., United States (private address) |
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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 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |