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Northwest Africa 14945 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14945 This is an OFFICIAL meteorite name. Abbreviation: NWA 14945 Observed fall: No Year found: 2015 Country: Morocco Mass: 93.4 g | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 12780 approved meteorites (plus 11 unapproved names) classified as L6. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||
Comments: | Approved 13 May 2022 | ||||||||||||||||||||||||||
Writeup |
Writeup from MB 111:
Northwest Africa 14945 (NWA 14945) Morocco Purchased: 2015 Classification: Ordinary chondrite (L6) History: Sample was purchased in 2015 from A. Aaronson at the Tucson mineral show who acquired it from Morocco. Sample is catalogued at ROM as M60279. Physical characteristics: Irregular, brown individual stone with minimal remnant fusion crust, dull desert polished broken surfaces and throughgoing cracks. Meteorite appears weathered to a rusty orange appearance. Physical properties: Magnetic susceptibility measured for a 18.84 g endpiece specimen is log χ (× 10-9 m3/kg) = 4.28. Petrography: Cut faces (9 cm2) reveal a dark oragnge weathered interior matrix with disseminated metal grains, typically surrounded by Fe oxide haloes. Some dark chondrules are discernable. In polished thin section, chondrules are barely delineated within a recrystallized matrix. Grain boundaries between silicate and metal, sulfide grains are simplified. Olivine and pyroxene show undulatory extinction and some planar fractures. Metal grains up to 400 µm size typically have Fe oxide rims, and sulfide grains are extensively replaced by Fe oxides. Classification: Ordinary chondrite: L6 (S3) W3. Magnetic susceptibility is consistent with weathered L chondrite. Specimens: Type specimen location: ROM. Main mass: Gregory. | ||||||||||||||||||||||||||
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 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 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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