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Northwest Africa 11722 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11722 This is an OFFICIAL meteorite name. Abbreviation: NWA 11722 Observed fall: No Year found: 2005 Country: (Northwest Africa) Mass: 7.21 kg | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 840 approved meteorites (plus 2 unapproved names) classified as L3. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 7 Mar 2018 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11722 (NWA 11722) (Northwest Africa) Purchased: 2005 Classification: Ordinary chondrite (L3) History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005, subsequently acquired by the Hollis Collection and then donated to PSF. Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules (apparent diameter 510±370 µm, N = 15) are set in a finer grained matrix containing altered kamacite, merrillite and taenite. Geochemistry: Olivine (Fa6.3-43.5, Cr2O3 in ferroan examples 0.03-0.15 wt.%, mean 0.08±0.05 wt.%, N = 8), orthopyroxene (Fs2.1-19.5Wo0.3-0.4, N = 3), pigeonite (Fs3.6Wo17.1), augite (Fs7.9Wo44.7). Classification: Ordinary chondrite (L3). Specimens: The entire specimen including one polished thin section is at PSF. | ||||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
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Institutions and collections |
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) 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. 107, MAPS 55, 460-462
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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