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Northwest Africa 11097 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11097 This is an OFFICIAL meteorite name. Abbreviation: NWA 11097 Observed fall: No Year found: 2016 Country: Morocco Mass: 13 kg | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 487 approved meteorites classified as LL3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 26 Jan 2017 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 11097 (NWA 11097) Morocco Purchased: 2016 Dec Classification: Ordinary chondrite (LL3) History: Purchased by Ke Zuokai in Dec. 2016 from a Moroccan dealer. Physical characteristics: The meteorite has a brown fusion crust. Chondrules and clasts ranging from white to dark gray are visible. Petrography: The thin section shows abundant well-defined chondrules ranging from 0.1 to 1.5 mm, with a few up to 3 mm. Chondrules with porhyritic and barred textures set in a fine-grained matrix. Olivine grains within chondrules often exhibit chemical zonation with Mg-rich cores and Fe-rich rims. Metallic phase accounts for ~2 vol%. Mineral and chondrule clasts are also present. Geochemistry: Silicates are unequilibrated. Olivine Fa3.1-53.5 (Fa19.4±11.2, PMD=44.1%, n=79); low-Ca pyroxene Fs1.8-31.3Wo0-4.9 (Fs12.3±8.8Wo0.8±1.2, Fs PMD=59.8%, n=35); minor pigeonite Fs17.9-25.5Wo6.0-20.3 and augite Fs10.7-14.0Wo30.2-37.7. Classification: LL3. classification based on relatively large chondrules and low metal abundance. | ||||||||||||||||||||||||||||||
Data from: MB106 Table 0 Line 0: |
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Institutions and collections |
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011) |
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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 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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