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Northwest Africa 13490 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13490 This is an OFFICIAL meteorite name. Abbreviation: NWA 13490 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 299 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 643 approved meteorites (plus 1 unapproved name) classified as CO3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 14 Nov 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13490 (NWA 13490) (Northwest Africa) Purchased: 2019 Oct Classification: Carbonaceous chondrite (CO3) Petrography: (J. Gattacceca, CEREGE) Chondrite with small chondrules (average apparent diameter ~200 µm) and small CAIs set in abundant matrix (~30 vol%). Opaque minerals are metal, troilite and magnetite. Geochemistry: Olivine Fa24.9±13.9, Fa PMD 49% (n=14). Cr2O3 in ferroan olivine 0.11±0.10 wt% (n=11). Low-Ca pyroxene Fs4.3±1.2Wo1.5±0.0 (n=3). Classification: Carbonaceous chondrite (CO3). Estimated subtype 3.2-3.5 based on Fa PMD and Cr2O3 content of ferroan olivine. Specimens: Type specimen at CEREGE. Main mass with Kuntz. | ||||||||||||||||||||||||||||||
Data from: MB109 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) Kuntz: Fabien Kuntz, France; Website (private address) |
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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 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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