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Northwest Africa 15247 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15247 This is an OFFICIAL meteorite name. Abbreviation: NWA 15247 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 11372 approved meteorites (plus 22 unapproved names) classified as H5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||
Comments: | Approved 5 Sep 2022 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 111:
Northwest Africa 15247 (NWA 15247) (Northwest Africa) Purchased: 2013 Classification: Ordinary chondrite (H5) History: A 7.3 g piece of the meteorite was sent to Cascadia by John Shea, who purchased in 2013 from Steve Witt, who acquired it as part of a lot of meteorites. Petrography: (M. Hutson, A. Ruzicka, Cascadia): Chondrules are readily discerned in thin section, but lack sharp contacts with matrix, which is relatively coarse-grained (? 15 µm across). Plagioclase feldspar grains (? 35 µm across) are present. Geochemistry: Olivine: Fa18.8±0.3, N=19; low-Ca pyroxene: Fs16.3±0.1Wo1.2±0.1, N=15. Classification: Ordinary chondrite (H5) based on mineral chemistry and texture. Specimens: Cascadia holds 6.7 g in two pieces, as well as a polished thin section; JShea holds the main mass. | ||||||||||||||||||||||||||||
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) |