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| Northwest Africa 14911 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 14911 This is an OFFICIAL meteorite name. Abbreviation: NWA 14911 Observed fall: No Year found: 2011 Country: (Northwest Africa) Mass:  343 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 12583 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 9 May 2022 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 111:
Northwest Africa 14911 (NWA 14911) (Northwest Africa) Purchased: 20 Jan 2011 Classification: Ordinary chondrite (L6) Physical characteristics: Physical Characteristics: CML received a thick (1 cm) slice with acrylic on both cut faces. Cut surfaces are dark brown, with slightly lighter colored clasts separated by dark veins. Petrography: (M. Hutson, A. Ruzicka, Cascadia): There is a well-developed fusion crust (up to 0.5 mm thick) on the two longer edges of the sample in thin section. The texture is coarse-grained, with a few barely discernible chondrules. Dark veins cross the section; in reflected light, these contain numerous small blebs of troilite and weathering product. Small grains of maskelynite were observed. In BSE imaging, the dark veins contain silicate melt with a few zoned grains and numerous blebs of metal/sulfide/weathering product having a cellular texture. Geochemistry: Fa24.5±0.6, N=12; Low-Ca pyroxene: Fs20.8±0.2Wo1.2±0.2, N=8. Classification: Ordinary chondrite (L6) based on mineral chemistry and texture. Specimens: Cascadia holds 24.7 g in one piece, as well as a polished thin section and material in an epoxy butt; Greg Carr 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) | ||||||||||||||||||||||||||||||