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| Northwest Africa 15615 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 15615 This is an OFFICIAL meteorite name. Abbreviation: NWA 15615 Observed fall: No Year found: 2019 Country: Morocco Mass:  2.36 kg | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 12401 approved meteorites (plus 8 unapproved names) classified as L6. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
| Comments: | Approved 7 Jan 2023 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 112:
Northwest Africa 15615 (NWA 15615) Morocco Purchased: 2019 Classification: Ordinary chondrite (L6) History: Purchased by Oz Backman in February of 2020 from Topher Spinnato who purchased it in June of 2019 from a Moroccan dealer. Physical characteristics: Three fragments that fit together to form a single complete stone covered in a smooth weathered black fusion crust. Saw cut of the smallest fragment reveals a dark mottled brecciated interior with metal flecks and several intersecting black shock veins transiting the stone. Petrography: (D. Dickens, CCMS and A. S. Bell, CUB) Optical and microprobe examination of polished mount shows a mostly recrystallized matrix of olivine and pyroxene with sparse relic chondrules. Secondary phases include plagioclase with grain size of approximately 70 µm, and stained kamacite. Shock effects were observed. Geochemistry: (D. Dickens, CCMS and A. S. Bell, CUB) Olivine 24.1±0.4, n=3; low-Ca pyroxene Fs20.9Wo1.3, n=1. Classification: Ordinary chondrite (L6) Specimens: 20 g with probe mount on deposit at Cascadia, Oz Backman holds the main mass. | ||||||||||||||||||||||||||||||
| 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:
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Statistics: This is 1 of 1991 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||