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Northwest Africa 6425 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 6425 This is an OFFICIAL meteorite name. Abbreviation: NWA 6425 Observed fall: No Year found: 2010 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 22 approved meteorites classified as LL3.5. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 6 Sep 2013 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 102:
Northwest Africa 6425 (NWA 6425) Northwest Africa Purchased: 2010 Oct Classification: Ordinary chondrite (LL3.5) Petrography: (A. Irving and S. Kuehner, UWS) Large (1 mm), well-formed chondrules and sparse dark inclusions (one is a stained very fine grained chondrite) in a stained matrix. Minerals are olivine, orthopyroxene, subcalcic augite, augite, sodic plagioclase, chromite, altered kamacite and troilite. Geochemistry: Olivine (Fa0.6-31.2, n=8. Cr2O3 in ferroan olivine = 0.02-0.08 wt.%, mean 0.06, s.d. 0.02, N = 6), orthopyroxene (Fs1.8-24.7Wo1.0-0.2), subcalcic augite (Fs14.6Wo28.4), augite (Fs8.5Wo44.2). Classification: Ordinary chondrite (LL3.5). Subtype estimated from Cr2O3 distribution in ferroan olivine based on histograms (Fig. 4) in Grossman and Brearley (2005). | ||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB102 Table 0 Line 0: |
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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) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |