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Northwest Africa 11054 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11054 This is an OFFICIAL meteorite name. Abbreviation: NWA 11054 Observed fall: No Year found: 2016 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 22 approved meteorites classified as LL(L)3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 14 Feb 2017 | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 106:
Northwest Africa 11054 (NWA 11054) (Northwest Africa) Purchased: 2016 Oct Classification: Ordinary chondrite (LL(L)3) History: Purchased by John Higgins in October 2016 from a dealer in Nouakchott, Mauritania. Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, well-formed chondrules (apparent diameter 500±200 μm) are set in a sparse, fine grained matrix containing altered metal. Geochemistry: Olivine (Fa1.7-45.0, Cr2O3 in ferroan examples 0.06-0.39 wt.%, mean 0.12±0.13 wt.%, N = 7), orthopyroxene (Fs2.9-15.4Wo0.2-1.5, N = 3), pigeonite (Fs23.3Wo9.9), diopside (Fs3.3Wo47.9). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.36. Classification: Ordinary chondrite (LL(L)3). Specimens: 21.95 g including one polished thin section at UWB; remainder with Mr. J. Higgins. | ||||||||||||||||||||||||||||||||
Data from: MB106 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 Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: |
Statistics: This is 1 of 7547 approved meteorites from (Northwest Africa) (plus 1970 unapproved names) |