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Northwest Africa 14919 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14919 This is an OFFICIAL meteorite name. Abbreviation: NWA 14919 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: 35 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 651 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 20 Jun 2022 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 14919 (NWA 14919) (Northwest Africa) Purchased: 2021 Sep Classification: Carbonaceous chondrite (CO3) History: Purchased by Juan Avilés Poblador in September 2021 from an Algerian dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed, relatively small, unequilibrated chondrules (apparent diameter 180±110 µm, N = 24), zoned mineral fragments and very fine-grained CAI are set in a fine grained matrix (~ 40 vol.%, deep reddish-brown in thin section) containing magnetite, troilite, pentlandite and minor kamacite, plus secondary Fe oxide and barite. Geochemistry: Olivine (Fa21.2±19.8, range Fa0.8-49.8, N = 4; Cr2O3 in ferroan olivine 0.15-0.48 wt.%, mean 0.28±0.13 wt.%, N = 5), low-Ca pyroxene (Fs3.1±3.4Wo2.1±1.4, range Fs1.0-8.2Wo0.6-3.7, N = 4), ferroan low-Ca pyroxene (Fs42.4±2.0Wo1.8±0.4, range Fs41.0-43.8Wo1.5-2.0, N = 2), subcalcic augite (Fs1.6Wo28.9), augite (Fs5.9Wo36.4), magnetite (Cr2O3 0.2 wt.%, 1.7 wt.%, N = 2). Classification: Carbonaceous chondrite (CO3, magnetite-bearing). Specimens: 15.85 g including two polished thin sections at UWB; remainder with Mr. J. Poblador. | ||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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