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Northwest Africa 692 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 692 This is an OFFICIAL meteorite name. Abbreviation: NWA 692 Observed fall: No Year found: 2000 Country: (Northwest Africa) Mass: 478 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 11568 approved meteorites (plus 23 unapproved names) classified as H5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||
Comments: | Approved 4 Apr 2014 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 692 (NWA 692) (Northwest Africa) Purchased: 2000 Classification: Ordinary chondrite (H5) History: 1 stone weighing 478 g was purchased in Erfoud, Morocco, in 2000. Thomas Webb acquired the sample from Michael Cottingham in 2000. Physical characteristics: Stone is brownish-orange in color and has an angular shape. The sample lacks fusion crust, but has shallow regmaglypts. Petrography: Description and classification (Anthony Love, App): Sample displays recrystallized chondritic texture composed of distinct chondrules (avg. dia. 489 μm, n=62) and fragments in a recrystallized matrix. Geochemistry: (A. Love, App) Olivine Fa18.1±0.2, n=16; low Ca pyroxene Fs16.9±0.1Wo1.5±0.7, n=12. Classification: Ordinary Chondrite (H5 S3 W3) Specimens: 23.94 g and 1 polished thin section are on deposit at App | ||||||||||||||||||||||||||||||||
Data from: MB103 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. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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