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Northwest Africa 12835 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12835 This is an OFFICIAL meteorite name. Abbreviation: NWA 12835 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 209 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 276 approved meteorites classified as Eucrite-mmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 11 Oct 2019 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Northwest Africa 12835 (NWA 12835) (Northwest Africa) Purchased: 2019 Feb Classification: HED achondrite (Eucrite, monomict) History: Purchased by Jason Bliss in February 2019 from a Moroccan dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia consisting of eucrite clasts with intersertal to subophitic texture plus related crystalline debris. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite, Ti chromite, troilite and rare zircon plus minor secondary calcite and gypsum. Geochemistry: Orthopyroxene (Fs62.0-62.3Wo1.8-1.9, FeO/MnO = 31-32, N = 3), clinopyroxene (Fs26.7-28.3Wo44.2-42.8, FeO/MnO = 28-30, N = 3), plagioclase (An79.8-82.5Or1.1-0.7, N = 2). Classification: Eucrite (monomict breccia). Specimens: 20.5 g including one polished thin section at UWB; remainder with Mr. J. Bliss. | ||||||||||||||||||||||||||||
Data from: MB108 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) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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