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Northwest Africa 10781 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10781 This is an OFFICIAL meteorite name. Abbreviation: NWA 10781 Observed fall: No Year found: 2015 Country: Morocco Mass: 91 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 451 approved meteorites classified as Howardite. [show all] Search for other: Achondrites, HED achondrites, and Howardites | ||||||||||||||||||||||||||||||
Comments: | Approved 23 Aug 2016 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 10781 (NWA 10781) Morocco Purchased: 2015 Oct Classification: HED achondrite (Howardite) History: Bought by Jean Redelsperger from Abdellah Afiniss in Agadir in October 2015. Physical characteristics: A single grayish stone without fusion crust. Darker clasts to cm are visible at the surface. Cut surface reveals a light-gray interior with dark clasts. Petrography: Brecciated rock with cataclastic matrix. Clasts to 1 cm, some with coarse sub-ophitic texture. Main minerals are pyroxenes (some zoned, some exsolved), plagioclase. Accessory olivine, troilite (sometimes as tiny grains aligned in silicates), chromite (to 700 μm) in matrix and silicate clasts, ilmenite, silica polymorph, Fe-Ni metal. Geochemistry: Pyroxenes: diogenitic orthopyroxene Fs27.8±1.1Wo3.2±0.1 (N=4), eucritic Ca-pyroxene Fs46.6±7.9Wo15.5±5.0 (N=3), FeO/MnO=32.5±4.3 (N=7). Plagioclase An84.2±2.2Ab15.2±2.2Or0.6±0.1 (N=4). Olivine Fa60.5, FeO/MnO=47.0 (N=1). Magnetic susceptibilty log χ (× 10-9 m3/kg) = 3.26. Classification: Achondrite (Howardite). Specimens: 18.4 g at CEREGE. Main mass with Jean Redelsperger. | ||||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
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Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 10 Jun 2023) |
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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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Photos: |
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Geography: |
Statistics: This is 1 of 2068 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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