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Northwest Africa 11512 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11512 This is an OFFICIAL meteorite name. Abbreviation: NWA 11512 Observed fall: No Year found: 2017 Country: Morocco Mass: 6.85 kg | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 135 approved meteorites classified as Eucrite-unbr. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 6 Dec 2017 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 11512 (NWA 11512) Morocco Purchased: 2017 Aug Classification: HED achondrite (Eucrite, unbrecciated) History: Purportedly found in southern Morocco and purchased by Darryl Pitt in June 2017 from a dealer in Mauritania. Petrography: (A. Irving and S. Kuehner, UWS) Microgabbroic texture. Composed predominantly of exsolved pigeonite and calcic plagioclase (mean grainsize 0.8 mm) with subordinate silica polymorph and accessory ilmenite, Ti-poor chromite, Ti-rich chromite, troilite, baddeleyite and Ni-free metal. Geochemistry: Orthopyroxene host (Fs59.1-59.2Wo2.3-2.2, FeO/MnO = 29-30, N = 2, clinopyroxene exsolution lamellae (Fs27.4-28.1Wo41.3-40.3, FeO/MnO = 28-31, N = 2), plagioclase (An87.89.7Or0.5-0.3, N = 2). Classification: Eucrite (unbrecciated, microgabbroic). Specimens: 30.87 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 2049 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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