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Northwest Africa 15377 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15377 This is an OFFICIAL meteorite name. Abbreviation: NWA 15377 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 329 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 12 Nov 2022 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 111:
Northwest Africa 15377 (NWA 15377) (Northwest Africa) Purchased: 2021 Classification: Lunar meteorite (feldspathic breccia) History: Purchased by Craig Zlimen from a meteorite dealer in Algeria in 2021. Physical characteristics: Sample contains minor fusion crust. Petrography: (D. Sheikh, Cascadia) Specimen is a polymict breccia comprised of mm-sized lithic and monomineralic clasts set within a dark, finer-grained fragmental matrix. Lithic clast lithologies identified include: anorthosites, troctolites, olivine norites, noritic anorthosites, and impact-melt-rich clasts. Accessory phases include ilmenite, spinel (some Cr-rich), SiO2-rich glass, and chromite (some Ti-rich). Geochemistry: Olivine (Fa22.4±9.7, range Fa10.9-44.4, Fe/Mn=84±12, n=30), Low-Ca Pyroxene (Fs23.1±10.2Wo3.6±0.8, range Fs13.1-36.5Wo2.1-4.5, Fe/Mn=50±6, n=9), Pigeonite (Fs31.8±6.3Wo8.9±3.6, range Fs26.2-39.9Wo5.6-14.7, Fe/Mn=51±4, n=5), High-Ca Pyroxene (Fs17.4±10.8Wo39.4±3.8, range Fs7.2-35.1Wo33.8-42.9, Fe/Mn=41±9, n=5), Calcic Plagioclase (An96.0±0.7, range An94.6-97.3, n=30). Classification: Lunar (feldspathic fragmental breccia). Specimens: 20.2 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 Meteoritical Bulletin, no. 111, in preparation (2022)
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Geography: |
Statistics: This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names) |