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Northwest Africa 13208 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13208 This is an OFFICIAL meteorite name. Abbreviation: NWA 13208 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 164.8 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 660 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 29 Feb 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13208 (NWA 13208) (Northwest Africa) Purchased: 2019 Classification: Ureilite History: The meteorite was purchased from a Morrocan dealer at the mineral show in Munich, Germany. Physical characteristics: Three dark brownish rocks without fusion crust. Petrography: The meteorite shows a characteristic cumulate texture of typically 1.5 and up to 2 mm sized olivine and pigeonite grains. Olivine and pigeonite are enriched in Cr2O3 and display both typical reduced rims. The meteorite contains graphite. Geochemistry: reduced rims in olivine: Fa1.7-2.0; olivine contains 0.52±0.02 wt% Cr2O3 and 0.36±0.01 wt% CaO; reduced rims in pyroxene: Fs10.9-15.0Wo4.4-10.1; pigeonite contains 0.87±0.02 wt% Cr2O3 and 0.68±0.02 wt% Al2O3 | ||||||||||||||||||||||||||||||
Data from: MB109 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. 109, in preparation (2020)
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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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