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Northwest Africa 15437 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15437 This is an OFFICIAL meteorite name. Abbreviation: NWA 15437 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 24 approved meteorites classified as LL(L)3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 29 Jan 2023 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 112:
Northwest Africa 15437 (NWA 15437) (Northwest Africa) Purchased: 3 Dec 2021 Classification: Ordinary chondrite (LL(L)3) History: Purchased on 3 Dec 2021 by Chris Monk from Younes Chaoui. Physical characteristics: Many individual stones with dark-brown fusion crust. Petrography: (D. Sheikh, Cascadia) Unequilibrated ordinary chondrite composed of well-defined chondrules (Av. Diameter ~725±305 μm, n=28) set within a fine-grained matrix containing accessory Fe-Ni metal, troilite, and chromite. Geochemistry: Olivine (Fa23.4±16.7, range Fa1.7-62.9, n=32), Low-Ca Pyroxene (Fs9.0±6.0Wo0.8±0.5, range Fs1.3-24.2Wo0.2-2.4, n=24). Classification: Ordinary Chondrite LL(L)3. Specimens: 23.07 g at Cascadia, main mass with Chris Monk. | ||||||||||||||||||||||||||||||
Data from: MB112 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. 112, in preparation (2023)
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Geography: |
Statistics: This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names) |