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Northwest Africa 12765 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12765 This is an OFFICIAL meteorite name. Abbreviation: NWA 12765 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 15.95 kg | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 340 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 3 Aug 2019 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Northwest Africa 12765 (NWA 12765) (Northwest Africa) Purchased: 2019 Mar Classification: Lunar meteorite (feldspathic breccia) History: Purchased in March 2019 by Darryl Pitt from a Mauritanian dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of mineral clasts of anorthite, olivine (some of which is forsterite), low-Ca pyroxene, unexsolved pigeonite, subcalcic augite, chromite and ilmenite within a fine grained, sparsely microvesicular matrix containing minor secondary barite. Geochemistry: Olivine (Fa1.8-77.2, FeO/MnO = 85-104, N = 4), low-Ca pyroxene (Fs28.2Wo4.0, FeO/MnO = 64), pigeonite (F30.2-45.1Wo11.8-11.9, FeO/MnO = 60-65, N = 2), subcalcic augite (Fs35.7Wo29.9, FeO/MnO = 59), anorthite (An96.8Or0.2). Classification: Lunar (feldspathic breccia). Specimens: 20.1 g in the form of a polished endcut at UWB; remainder with DPitt. | ||||||||||||||||||||||||||||||
Data from: MB108 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) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) 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 Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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