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Northwest Africa 10267 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10267 This is an OFFICIAL meteorite name. Abbreviation: NWA 10267 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 2 approved meteorites classified as LL4-7. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 1 Mar 2017 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 106:
Northwest Africa 10267 (NWA 10267) (Northwest Africa) Purchased: 2013 Sep Classification: Ordinary chondrite (LL4-7) History: Purchased by Aras Jonikas in February 2015 from a Moroccan dealer. Petrography: (A. Irving and S. Kuehner, UWS) Complex breccia composed of relatively large (up to 2.4 mm), well-formed chondrules, angular mineral fragments and a variety of lithic clasts set in a finer grained matrix containing altered metal. Some lithic clasts contain relict chondrules (LL6) whereas others are completely recystallized (LL7). Rare clast types include very dark, fine grained indeterminate lithologies, fragmental breccias, and an aggregate dominated by K-feldspar. Minerals are olivine (equilibrated), orthopyroxene (unequilibrated, except in type 6 and type 7 clasts), augite, sodic plagioclase, chromite, altered kamacite, taenite, calcite and barite. Some chondrules contain very calcic plagioclase (bytownite). Geochemistry: Olivine (Fa29.0-29.5, N = 3), orthopyroxene (Fs5.4-22.8Wo0.4-3.5, N = 3), clinopyroxene (Fs9.5-9.8Wo44.5-43.3, N = 2). Classification: Ordinary chondrite (LL4-7 breccia). Specimens: 25 g including one 2" by 1.5" polished thin section at PSF. The main mass is held by Mr. A. Jonikas. | ||||||||||||||||||||||||||||||
Data from: MB106 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 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 7552 approved meteorites from (Northwest Africa) (plus 1969 unapproved names) |