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Northwest Africa 15120 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15120 This is an OFFICIAL meteorite name. Abbreviation: NWA 15120 Observed fall: No Year found: 2022 Country: (Northwest Africa) Mass: 190 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 7 approved meteorites classified as Achondrite-prim-ung. [show all] Search for other: Primitive achondrites, Ungrouped achondrites | ||||||||||||||||||||||||||||||
Comments: |
Approved 1 Oct 2022 Revised 11 Jan 2024: Reclassified with NWA 15061 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 15120 (NWA 15120) (Northwest Africa) Purchased: 2022 Classification: Primitive achondrite (Winonaite) History: Purchased by Shun-Chung Yang in 2022 from a dealer in Tindouf, Algeria. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Equigranular aggregate of enstatite, forsterite, diopside and intermediate plagioclase (andesine) with accessory kamacite (almost completely altered to Fe oxides), troilite and daubreelite. Grain boundaries have thin coatings of secondary Fe hydroxides. Geochemistry: Enstatite (Fs1.3-1.5Wo0.9-1.0, N = 6), forsterite (Fa1.0-1.3, N = 6), diopside (Fs0.6-0.7Wo41.9-42.0, N = 4), plagioclase (Ab59.6-62.7An40.1-37.0Or0.2-0.4, N = 5), kamacite (Ni 5.4-6.3 wt.%, Si < 0.02 wt.%, N = 7). Classification: Winonaite. The material was obtained from the same source as NWA 15061, and is evidently paired with it on the basis of essentially identical texture, mineral compositions and degree of terrestrial alteration of metal. Specimens: 22.0 g including one polished thin section at UWB; remainder with Mr. S.-C. Yang. | ||||||||||||||||||||||||||||||
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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos: |
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
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