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Northwest Africa 15651 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15651 This is an OFFICIAL meteorite name. Abbreviation: NWA 15651 Observed fall: No Year found: 2022 Country: Niger Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 824 approved meteorites (plus 1 unapproved name) classified as L3. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||
Comments: | Approved 29 Jan 2023 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 112:
Northwest Africa 15651 (NWA 15651) Niger Purchased: March 2022 Classification: Ordinary chondrite (L3) History: Purchased on March, 2022 by Thomas C. Garner through a seller in Niamey, Niger. Physical characteristics: A single dark brown stone with what appear to be many tightly packed chondrules visible through sand poplished exterior. Saw cut reveals a dark brown interior with many closely packed chondrules and chondrule fragments. Metal is not easily visible with the unaided eye. Petrography: (D. Dickens, CCMS) Microprobe and optical examination of polished probe mount shows a chondritic texture with tightly packed well-delineated chondrules with an apparent diameter 613±230 µm (n=12). Several chondrules with apparent diameter of between 2mm and 3mm were observed in hand samples but were not seen in the BSE images examined. Olivine appears to be zoned. Accessory opaque phases include kamacite and troilite. Geochemistry: (D. Dickens, CCMS, and A. S. Bell, CUB) Olivine Fa21.7±9.2, n=8; low-Ca pyroxene Fs9.4±1.0Wo0.9±0.8, n=7. Classification: Ordinary chondrite (L3) Specimens: 30 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) |