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Northwest Africa 15650 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15650 This is an OFFICIAL meteorite name. Abbreviation: NWA 15650 Observed fall: No Year found: 2022 Country: Niger 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 29 Jan 2023 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 112:
Northwest Africa 15650 (NWA 15650) Niger Purchased: March 2022 Classification: Ordinary chondrite (H4) History: Purchased on March, 2022 by Thomas C. Garner through a seller in Niamey, Niger. Physical characteristics: A single dark brown weathered stone, with saw cut revealing an interior displaying ubiqiotous metal and many relatively small chondrules set in a light gray groundmass. Petrography: (D. Dickens, CCMS) Microprobe and optical examination of polished probe mount shows numerous tightly packed well-delineated chondrules set in a recrystallized matrix. Chondrules have an average apparent diameter of 410±280 μm , n=10. Abundant mm sized unaltered kamacite blebs, several mm sized troilite blebs. Geochemistry: (D. Dickens, CCMS, and A. S. Bell, CUB) Olivine Fa19.7±0.8, n=6; low-Ca pyroxene Fs16.1±2.1 Wo0.2±0.1, n=4. Classification: Ordinary chondrite (H4) Specimens: 20 g on deposit with Cascadia; Main mass with Logan Garner. | ||||||||||||||||||||||||||||
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) CUB: Daniel Ozdín, Mineralogical Museum of Comenius University, Faculty of Natural Sciences, Ilkovicova 6, 842 15 Bratislava, Slovakia (institutional address; updated 2 Dec 2018) |
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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 117 approved meteorites from Niger (plus 4 unapproved names) |