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Northwest Africa 15284 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15284 This is an OFFICIAL meteorite name. Abbreviation: NWA 15284 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 6459 approved meteorites (plus 2 unapproved names) classified as H4. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 14 Sep 2022 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 111:
Northwest Africa 15284 (NWA 15284) (Northwest Africa) Purchased: 2021 Classification: Ordinary chondrite (H4) History: Found in 2021 by Yunes Chaoui, later purchased by Chris Monk on 8-1-2021. Physical characteristics: One stone with dark-brown fusion crust. Petrography: (D. Sheikh, Cascadia) Sample is an ordinary chondrite containing chondrules (Av. 500±50 _m) and accessory Fe-Ni metal and troilite. Geochemistry: Olivine (Fa18.9±0.4, range Fa18.2-19.8, n=34), Low-Ca Pyroxene (Fs16.7±0.5Wo1.2±0.5, range Fs16.1-18.4Wo0.8-3.0, n=21). Classification: Ordinary Chondrite (H4). Specimens: 23.3 g at Cascadia, main mass with Chris Monk. | ||||||||||||||||||||||||||||||
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) |