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Northwest Africa 7518 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7518 This is an OFFICIAL meteorite name. Abbreviation: NWA 7518 Observed fall: No Year found: 2012 Country: Morocco Mass: 650 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 394 approved meteorites classified as LL4. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||
Comments: | Approved 31 Oct 2012 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 101:
Northwest Africa 7518 (NWA 7518) Morocco Purchased: May 2012 Classification: Ordinary chondrite (LL4) History: Purchased by Sean Tutorow in Morocco, May 2012. Physical characteristics: Single stone, brown exterior, saw cut reveals numerous chondrules and clasts and scattered fine-grained metal/sulfide, set in a light brown matrix. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous PO and POP chondrules in a fine-grained crystallized matrix, some chondrules with recrystallized mesostasis and some with plagioclase. Also present, some finer-grained domains up to 5 mm with a few relict chondrules, possibly LL6 lithology. Accessory troilite, kamacite, taenite, and chromite. Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa29.3±0.5, Fe/Mn=60±3, n=14; low-Ca pyroxene Fs22.4±3.1Wo1.5±1.1 Fe/Mn=36±3, n=22. Classification: Ordinary chondrite (LL4), weathering grade W2. Specimens: 20.8 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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Geography: |
Statistics: This is 1 of 2068 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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