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Northwest Africa 15286 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15286 This is an OFFICIAL meteorite name. Abbreviation: NWA 15286 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: 68 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 28 approved meteorites classified as Lunar (melt breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 1 Oct 2022 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 15286 (NWA 15286) (Northwest Africa) Purchased: 2021 Classification: Lunar meteorite (melt breccia) History: Purchased by Craig Zlimen in 2021 from a meteorite dealer in Algeria. Physical characteristics: Single stone with minor dark fusion crust. Petrography: (D. Sheikh, Cascadia) Sample is a polymict breccia consisting of a variety of mm-sized lithic clasts and sub-angular mineral fragments (e.g. exsolved pigeonite, forsteritic olivine, plagioclase) set within a partly vesicular, plagioclase-rich crystalline melt rock matrix. Lithic clast lithologies identified in the sample include: anorthosites, troctolites, olivine norites, anorthositic norites, basalts, and impact melt-rich clasts (Stoffler et al., 1980), indicative of this specimen sampling a mix of highland (FAN, Mg-Suite), mare, and PKT material. Accessory phases include ilmenite, Cr-spinel, SiO2-rich glass, pentlandite, and baddeleyite. Geochemistry: Olivine (Fa25.4±13.9, range Fa6.9-47.2, Fe/Mn=86±10, n=8), Low-Ca Pyroxene (Fs22.4±11.3Wo4.3±0.5, range Fs12.2-37.0Wo3.7-4.7, Fe/Mn=46±4, n=4), Pigeonite (Fs31.1±13.2Wo14.8±4.9, range Fs17.3-57.9Wo7.7-22.4, Fe/Mn=49±7, n=10), Augite (Fs27.9±9.8Wo29.2±6.1, range Fs22.0-39.2Wo25.5-36.3, Fe/Mn=47±3, n=3), Calcic plagioclase (An94.0±5.4, range An76.9-98.7, n=26). Classification: Lunar (polymict melt breccia). Specimens: 13.66 g at Cascadia, main mass with Craig Zlimen. | ||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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