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Northwest Africa 14180 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14180 This is an OFFICIAL meteorite name. Abbreviation: NWA 14180 Observed fall: No Year found: 2021 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 2852 approved meteorites (plus 2 unapproved names) classified as LL6. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 6 Oct 2021 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 14180 (NWA 14180) (Northwest Africa) Purchased: 2021 Jun Classification: Ordinary chondrite (LL6) History: Purchased by Ziyao Wang in June 2021 from a dealer in Ouarzazate, Morocco. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Highly recrystallized with triple grain junction and poikiloblastic textures (mean grainsize ~70 µm). Three possible but indistinct remnant chondrules were observed in a large area thin section. Composed predominantly of olivine and low-Ca pyroxene with accessory augite, sodic plagioclase, low-Ti chromite, troilite, pentlandite and taenite. Geochemistry: Olivine (Fa31.7±1.1, range Fa31.1-33.3, N = 4), low-Ca pyroxene (Fs25.5±0.2Wo2.0±0.2, range Fs25.2-25.7Wo1.9-2.2, N = 4), augite (Fs10.6±0.2Wo43.6±0.2, range Fs10.3-10.8Wo43.4-43.8, N = 4), plagioclase (Ab83.2An10.7Or6.1). Oxygen isotopes (K. Ziegler, UNM): analyses of acid-washed subsamples by laser fluorination gave, respectively, δ17O 3.899, 4.036, 3.953; δ18O 5.064, 5.402, 5.205; Δ17O 1.226, 1.183, 1.205 (all data linearized). Classification: Ordinary chondrite (LL6). Specimens: 28.9 g including one polished thin section at UWB; remainder with WangZ. | ||||||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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Plots: | O isotopes: | ||||||||||||||||||||||||||||||
Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography: |
Statistics: This is 1 of 8402 approved meteorites from (Northwest Africa) (plus 1899 unapproved names) |