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Northwest Africa 7492 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7492 This is an OFFICIAL meteorite name. Abbreviation: NWA 7492 Observed fall: No Year found: 2012 Country: Morocco Mass: 809 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 12727 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 18 Oct 2012 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 101:
Northwest Africa 7492 (NWA 7492) Morocco Purchased: May 2012 Classification: Ordinary chondrite (L6) History: Purchased by Sean Tutorow in Morocco, May 2012. Physical characteristics: Single stone, partially fusion crusted, saw cut reveals finely disseminated metal/sulfide and indistinct chondrules set in a light-gray matrix. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows equilibrated ordinary chondritic texture with indistinct chondrules, also a fine-grained equilibrated clast. Ubiquitous troilite and kamacite, minor taenite and chromite, minimal oxidation of metal. Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa24.7±0.3, Fe/Mn=50±1, n=3; low-Ca pyroxene Fs20.5±0.3Wo1.4±0.1, Fe/Mn=30±2, n=3; high-Ca pyroxene Fs8.3±0.0Wo43.5±0.1, Fe/Mn=21±1, n=2; plagioclase Or9.5±0.1Ab78.3±0.3An12.3±0.2, n=4. Classification: Ordinary chondrite (L6), weathering grade W1. Specimens: 23.2 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass. | ||||||||||||||||||||||||||||
Data from: MB101 Table 0 Line 0: |
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Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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Photos: |
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Geography: |
Statistics: This is 1 of 2068 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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