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Northwest Africa 14114 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14114 This is an OFFICIAL meteorite name. Abbreviation: NWA 14114 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 75 approved meteorites classified as CK3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 20 Dec 2021 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 14114 (NWA 14114) (Northwest Africa) Purchased: 2021 Classification: Carbonaceous chondrite (CK3) History: A total of 6 stones with very similar visual appearance were purchased in two lots by Shun-Chung Yang in April and June 2021 from a Moroccan dealer and his brother. Physical characteristics: The stones (total weight 350 g) have coatings of caliche but the dark brown interiors are fresh. Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed relatively large, glass-bearing chondrules (some with multiple rims, some containing Cr-magnetite, apparent diameter 1070±600 µm, N = 25) accompanied by irregularly shaped CAI and AOA are set in a fine grained matrix (~30 vol.%, sepia brown in thin section) containing anorthite, altered metal, Cr-magnetite (with up to 4.4 wt.% Cr2O3) and iron sulfides (with distinctly bimodal Ni contents). Geochemistry: Olivine (Fa13.6±14.3, range Fa3.0-44.2, N = 7), low-Ca pyroxene (Fs1.0±0.5Wo1.4±1.1, range Fs0.6-1.7Wo0.5-3.1, N = 5), diopside (Fs0.6Wo40.0), anorthite (An90.4-94.9Or0.0, N = 4), magnetite (Cr2O3 1.6-4.4 wt.%, mean 2.8 wt.%; TiO2 0.1 wt.%, Al2O3 0.8-1.5 wt.%, N = 5), Ni-poor iron sulfide (Ni 0.02-0.11 wt.%, N = 4), Ni-rich iron sulfide (Ni 10.4-19.2 wt.%, N = 6). Classification: Carbonaceous chondrite (CK3). CK group rather than CV based on the Cr2O3 content of magnetite, Torrano et al. (2020). Specimens: 21.4 g including one polished thin section at UWB; remainder with Mr. S.-C. Yang. | ||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB110 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) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |