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Northwest Africa 11321 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11321 This is an OFFICIAL meteorite name. Abbreviation: NWA 11321 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass: 247 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 136 approved meteorites classified as Eucrite-unbr. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 14 Jul 2017 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 11321 (NWA 11321) (Northwest Africa) Purchased: 2017 Mar Classification: HED achondrite (Eucrite, unbrecciated) History: Purchased by Darryl Pitt in March 2017 from a Mauritanian dealer. Petrography: (A. Irving and S. Kuehner, UWS) The specimen has an overall subophitic igneous texture, but domains of different grainsize are juxtaposed as a result of cross-cutting microfaults. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, Ti-chromite, ilmenite and troilite. Geochemistry: Orthopyroxene host (Fs60.6-63.0Wo3.7-2.3, FeO/MnO = 31-32, N = 2), clinopyroxene exsolution lamellae (Fs27.6-27.7Wo42.7-42.9, FeO/MnO = 33-34, N = 2), plagioclase (An84.5-87.8Or0.7-0.6, N = 2). Classification: Eucrite (unbrecciated, subophitic). Specimens: 20.1 g including one polished thin section at UWB; remainder with DPitt. | ||||||||||||||||||||||||||||
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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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