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Northwest Africa 15356 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15356 This is an OFFICIAL meteorite name. Abbreviation: NWA 15356 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 588 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 22 Oct 2022 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 111:
Northwest Africa 15356 (NWA 15356) (Northwest Africa) Purchased: 2021 Classification: HED achondrite (Eucrite) History: Purchased from Craig Zlimen in 2021 from an Algerian meteorite dealer. Physical characteristics: Single stone with dark brown fusion crust. Petrography: (D. Sheikh, Cascadia) Specimen displays a brecciated texture and is comprised primarily of mm-sized lithic fragments and isolated sub-angular elongate/equant plagioclase and clinopyroxene grains (Av. ~0.3 mm, up to ~0.5 mm) set within a finer-grained groundmass rich in pigeonite. Accessory phases include Cr-spinel, ilmenite, SiO2-rich glass, and troilite. Geochemistry: Pigeonite (Fs49.9±4.0Wo12.6±3.3, range Fs45.7-64.1Wo6.1-24.5, Fe/Mn=29±2, n=30), High-Ca Pyroxene (Fs47.3±31.9Wo34.8±11.6, range Fs24.7-69.9Wo26.6-43.1, Fe/Mn=34±4, n=2), Calcic Plagioclase (An90.6±0.5, range An89.0-91.3, n=20). Classification: HED Achondrite (Eucrite). Specimens: 20.65 grams 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) |