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Northwest Africa 7838 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7838 This is an OFFICIAL meteorite name. Abbreviation: NWA 7838 Observed fall: No Year found: 2012 Country: (Northwest Africa) Mass: 120.8 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 709 approved meteorites (plus 2 unapproved names) classified as H3. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 14 May 2013 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 7838 (NWA 7838) (Northwest Africa) Purchased: 2012 Classification: Ordinary chondrite (H3) History: A single stone weighing 120.8 g was found and purchased in Agadir in 2012. Thomas Webb acquired the sample from a meteorite prospector in November of 2012. Physical characteristics: The stone is devoid of fusion crust, but the shape appears to show orientation formed during flight. Chondrules are readily visible on the surface of the stone. Petrography: (A. Love, App): Sample displays numerous, well-defined 133-1972 μm (mean 630 μm, n=109), close-packed, type I and type II chondrules and fragments in a fine-grained opaque matrix. Several black, 0.73-2.2 mm opaque very fine-grained matrix lumps occur between the chondrules. Many chondrules display fine-grained rims (some up to 300 μm thick). Geochemistry: (A. Love, App) Olivine, Fa14.2±8.2 (N=24); pyroxene, Fs9.2±5.7Wo1.2±0.8 (N=15). Specimens: 20.0 g and one thin section are on deposit at App. | ||||||||||||||||||||||||||||||||
Data from: MB102 Table 0 Line 0: |
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Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) TWebb: No contact information provided., United States (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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