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Northwest Africa 14787 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14787 This is an OFFICIAL meteorite name. Abbreviation: NWA 14787 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: 830 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 840 approved meteorites (plus 2 unapproved names) classified as L3. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 19 Mar 2022 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 14787 (NWA 14787) (Northwest Africa) Purchased: 2021 Jun Classification: Ordinary chondrite (L3) History: Purchased by Jason Whitcomb in June 2021 from an Algerian dealer. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed, unequilibrated chondrules containing either devitrified glass or clear glass are set in a fine grained matrix containing altered kamacite, taenite, troilite, chromite and chlorapatite. Geochemistry: Olivine (Fa23.7±13.1, range Fa1.1-42.5, N = 14; Cr2O3 in ferroan olivine 0.01-0.66 wt.%, mean 0.13 wt.%, sd 0.20 wt.%, N = 12), low-Ca pyroxene (Fs16.8±8.6Wo1.1±1.1, range Fs2.4-23.9Wo0.2-2.9, N = 7). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.64. Classification: Ordinary chondrite (L3). Specimens: 23.6 g including one polished thick section at PSF; remainder with Mr. J. Whitcomb. | ||||||||||||||||||||||||||||||||
Data from: MB111 Table 0 Line 0: |
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Institutions and collections |
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024) |
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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 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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