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Northwest Africa 8230 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8230 This is an OFFICIAL meteorite name. Abbreviation: NWA 8230 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: 127 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 710 approved meteorites (plus 2 unapproved names) classified as H3. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 26 Jan 2017 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 8230 (NWA 8230) (Northwest Africa) Purchased: 2013 Dec Classification: Ordinary chondrite (H3) History: Purchased by Adam Aaronson in Temara, Morocco in December 2013. Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, relatively small chondrules (apparent diameter 500±300 µm) and relatively abundant altered metal. Minerals are olivine, orthopyroxene, augite, sodic plagioclase, altered kamacite, merrillite, chromite and troilite. Geochemistry: Olivine (Fa11.1-23.8; N = 4; Cr2O3 in ferroan examples = 0.04 wt.%), orthopyroxene (Fs7.4-35.5Wo0.2-1.9, N = 3), augite (Fs7.3Wo41.7). Magnetic susceptibility log χ (× 10-9 m3/kg) = 5.12. Classification: Ordinary chondrite (H3). Subtype estimated to be H3.8 based on the limited range in fayalite content of olivine and paucity of Cr2O3 in ferroan olivine (Grossman and Brearley, 2005). Specimens: 20.2 g including one polished thin section at UWB. The remainder is held by Aaronson. | ||||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB106 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) Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010) |
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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 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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