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Northwest Africa 10869 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10869 This is an OFFICIAL meteorite name. Abbreviation: NWA 10869 Observed fall: No Year found: 2016 Country: (Northwest Africa) Mass: 228 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 237 approved meteorites classified as Eucrite-br. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 22 Oct 2016 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 10869 (NWA 10869) (Northwest Africa) Purchased: June 2016 Classification: HED achondrite (Eucrite, brecciated) History: The meteorite was purchased in 2016 from a meteorite dealer at the mineral fair in St.Marie aux mines, France. Physical characteristics: The individual lacks any fusion crust and shows a grayish interior. Petrography: The meteorite is a breccia dominantly composed of coarse- and more fine-grained basaltic clasts and minor clastic matrix. Calcic plagioclase and exsolved pyroxenes are the dominant mineral phases and are up to 1 mm in size. Minor phases are FeS, chromite, ilmenite, SiO2 and metallic iron. The meteorite contains shock melt veins. Geochemistry: low-Ca pyroxene: Fs60.8±0.6Wo2.6±0.4 (Fs60.0-61.9Wo2.0-3.6, n=15, FeO/MnO=30-32); Ca-pyroxene: Fs26.2±0.4Wo43.8±0.8 (Fs25.6-27.2Wo42.8-45.1, n=14, FeO/MnO=28-32); calcic plagioclase: An89.0±1.7 (An85.8-93.8, n=15) | ||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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