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Northwest Africa 10871 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10871 This is an OFFICIAL meteorite name. Abbreviation: NWA 10871 Observed fall: No Year found: 2016 Country: (Northwest Africa) Mass: 27.7 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 408 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 27 Oct 2016 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 10871 (NWA 10871) (Northwest Africa) Purchased: June 2016 Classification: HED achondrite (Eucrite, polymict) 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 sand-colored interior. Petrography: The meteorite is a brecciated eucrite composed of up to 5 mm sized basaltic and melt clasts set into abundant, fine-grained, clastic matrix. Dominant minerals in basaltic clasts and matrix are exsolved pyroxene and calcic plagioclase grains of highly variable grain size, ranging from about 10 to 500 μm. Accessory minerals include chromite, FeS, silica and metallic iron. Geochemistry: low-Ca pyroxene: Fs41.4±11.6Wo3.3±1.0 (Fs18.4-58.7Wo1.6-4.8, n=19, FeO/MnO=27-44); Ca-pyroxene: Fs27.0±3.7Wo41.0±1.3 (Fs14.8-29.6Wo39.3-44.3, n=13, FeO/MnO=25-33); calcic plagioclase: An88.7±7.0 (An71.6-93.8, 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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