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Northwest Africa 4298 | |||||||||||||
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Basic information | Name: Northwest Africa 4298 This is an OFFICIAL meteorite name. Abbreviation: NWA 4298 Observed fall: No Year found: 2005 Country: (Northwest Africa) Mass: ![]() | ||||||||||||
Classification history: |
This is 1 of 11 approved meteorites classified as OC3. [show all] Search for other: Ordinary chondrites, Ordinary chondrites (type 3) | ||||||||||||
Comments: | Approved 24 Jul 2007 | ||||||||||||
Writeup![]() |
Writeup from MB 92:
Northwest Africa 4298 Morocco or Algeria Find: September 2005 Ordinary chondrite (type 3) History: Purchased from a Moroccan dealer in Erfoud by Adam Hupé in September 2005. Physical characteristics:A single 18 g light brown stone lacking fusion crust and with abundant, large chondrules. Petrography: (A. Irving and S. Kuehner, UWS): Very well formed and closely packed chondrules (mean diameter 1.5 mm).Chondrules (PO and POP) contain euhedral olivine or orthopyroxene crystals with Fe-enriched rims enclosed in glassy groundmass. Accessory kamacite (some as spherical grains in chondrules), taenite and troilite. The content of metal (+ minor Fe hydroxide) is very low (mode determined by BSE imaging of a whole thin section is 2 vol%). Classification: Ordinary chondrite (type 3); S1, W1/2. Specimens: A total of 4 g of sample and one polished thin section are on deposit at UWS. AHupé holds the main mass. | ||||||||||||
Data from: MB92 Table 2 Line 25: |
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Plots: | O isotopes: | ||||||||||||
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) CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
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Geography: |
Statistics: This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names) |