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Northwest Africa 15029 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 15029 This is an OFFICIAL meteorite name. Abbreviation: NWA 15029 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: 1959 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 236 approved meteorites classified as Eucrite-br. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 23 Jul 2022 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 15029 (NWA 15029) (Northwest Africa) Purchased: 2021 Aug Classification: HED achondrite (Eucrite, brecciated) History: Purchased by Jason Whitcomb in August 2021 from an Algerian dealer. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Breccia composed lithic clasts of fine-intergranular, diabasic and gabbroic eucrites plus related crystalline debris within a fine grained matrix. No diogenite components were observed. Minerals are exsolved pigeonite, calcic plagioclase, unexsolved pigeonite, zoned pigeonite, augite, fayalite, silica polymorph, Fe metal, ilmenite, chromite and troilite. Some symplectitic intergrowths of augite+fayalite+silica polymorph and a very fine grained recrystallized eucrite breccia clast are also present. Geochemistry: Orthopyroxene (Fs62.6Wo1.6, FeO/MnO = 32), pigeonite (Fs37.1-43.0Wo7.8-8.2; Fs44.7-48.8Wo11.5-17.1; FeO/MnO = 29-32; N = 4), ferropigeonite (Fs69.8-70.7Wo9.2-8.1, FeO/MnO = 17-18, N = 2), subcalcic augite (Fs42.5-43.9Wo20.8-26.0, FeO/MnO = 28-30, N = 3), ferroan subcalcic augite (Fs68.2Wo21.5; Fs57.4Wo26.5; Fs54.1Wo34.4; FeO/MnO = 32-34; N = 3), augite (Fs48.7Wo37.7, FeO/MnO = 34), fayalite (Fa87.0-88.3, FeO/MnO = 41, N = 3), plagioclase (An86.8-92.0Or0.4-0.2, N = 5). Classification: Eucrite (breccia). Specimens: 32.1 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb. | ||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) 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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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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