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Northwest Africa 11225 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11225 This is an OFFICIAL meteorite name. Abbreviation: NWA 11225 Observed fall: No Year found: 2016 Country: (Northwest Africa) Mass: 125.5 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 12727 approved meteorites (plus 11 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 10 May 2017 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 11225 (NWA 11225) (Northwest Africa) Purchased: 2016 Classification: Ordinary chondrite (L6) History: One stone weighing 125.5 g was found and subsequently purchased in Morocco in 2016. Damian Belghali acquired the sample from a meteorite prospector in 2016. Physical characteristics: The stone lacks fusion crust. Chondrules and flecks of metal are visible on the dark-yellow weathered exterior of this flattened stone. Petrography: Description and classification (A. Love, App): Sample is recrystallized. Relict chondrules have an average diameter of 1016 μm (n=37). Chondrule olivines display sharp optical extinction and contain planar to irregular fractures. Porphyritic chondrules contain turbid to recrystallized mesostasis. Sample contains irregular shaped FeS grains and metallic copper where FeNi and FeS are co-joined within FeNi. It has ~6vol% FeNi metal. Geochemistry: Olivine: Fa23.9±0.2 N=8; Low-Ca pyroxene: Fs23.4±0.2 Wo1.4±0.2 N=7. Classification: Ordinary chondrite: L6, S2, W1. Specimens: A polished thin section and 22.02 g comprise the type specimen are on deposit at App. Damian Belghali holds the main mass. | ||||||||||||||||||||||||||||||||
Data from: MB106 Table 0 Line 0: |
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Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) |
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Catalogs: |
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References: | Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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