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Northwest Africa 15319 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15319 This is an OFFICIAL meteorite name. Abbreviation: NWA 15319 Observed fall: No Year found: 2022 Country: Mauritania Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 123 approved meteorites classified as CK4. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 22 Oct 2022 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 111:
Northwest Africa 15319 (NWA 15319) Mauritania Purchased: 2022 Apr Classification: Carbonaceous chondrite (CK4) History: Purchased in April 2022 from a dealer in the Inchiri region of Mauritania by an Algerian team represented by David Lehman. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Separated well-formed, equilibrated, glass-free chondrules containing Cr-magnetite are set in a medium-grained matrix containing stained Cr-magnetite, intermediate plagioclase and chlorapatite plus very minor kamacite and pentlandite. Geochemistry: Olivine (Fa32.3±0.2, range Fa32.0-32.7, N = 6), low-Ca pyroxene (Fs27.0±0.5Wo0.7±0.1, range Fs26.2-27.7Wo0.6-0.8, N = 6), augite (Fs10.0±0.4Wo46.7±1.3, range Fs8.3-11.5Wo44.8-47.8, N = 5), plagioclase (An32.0-39.4Or2.9-4.7, N = 4), magnetite (Cr2O3 4.2-5.2 wt.%, N =7). Classification: Carbonaceous chondrite (CK4). Specimens: 20.3 g including one polished thin section at UWB; remainder with Mr. D. Lehman. | ||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Photos: |
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Geography:![]() |
Statistics: This is 1 of 200 approved meteorites from Mauritania (plus 2 unapproved names) (plus 2 impact craters) |