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| Northwest Africa 14669 | |||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 14669 This is an OFFICIAL meteorite name. Abbreviation: NWA 14669 Observed fall: No Year found: 2005 Country: Morocco Mass:  653 g | ||||||||||||||||||||||||||
| Classification history: |
This is 1 of 8642 approved meteorites (plus 4 unapproved names) classified as L5. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||
| Comments: | Approved 12 Feb 2022 | ||||||||||||||||||||||||||
| Writeup |
Writeup from MB 111:
Northwest Africa 14669 (NWA 14669) Morocco Purchased: 2005 Classification: Ordinary chondrite (L5) History: Sample was purchased at the Denver mineral show in 2005 from A. Aaronson, who acquired it from Morocco. Sample is catalogued at the Royal Ontario Museum as M59825. Physical characteristics: Large, irregular, fist-sized individual with nearly 100% fusion crust, showing regmaypts and some large > mm chondrules are visible in the fusion crust. Fusion crust surface has uniformly lightly developed desert polish. Physical properties: Magnetic susceptibilty of a 14.63 g specimen is log χ (× 10-9 m3/kg) = 4.18. Petrography: A cut face (11 cm2) reveals a mottled, orange-weathered interior bearing large, aggregated metal grains up to 2 mm in size, and some defined chondrules > mm in size. In thin section, larger POP, RP and BO chondrules can be readily defined and the matrix is finely recrystallized. Olivine shows sharp to undulatory extinction. In reflected light, large metal grains up to 400 µm in size are typically embayed on silicates. Sulfide grains are twice as abundant as metal and are typically pitted. Metal and sulfide grains commonly have boundaries altered to Fe oxides, which also line vugs and fill fine cracks. Classification: Ordinary chondrite L5 (S1) W2 Specimens: Type specimen ROM; main mass DGregory | ||||||||||||||||||||||||||
| Data from: MB111 Table 0 Line 0: |
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| Institutions and collections |
ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 2011) UWO: University of Western Ontario, Department of Earth Sciences, BGS 1026, 1151 Richmond St. N, London, Ontario, Canada N6A 5B7, Canada (institutional address; updated 18 Jul 2015) Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010) DGregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Geography:
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Statistics: This is 1 of 1992 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||