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Northwest Africa 13097 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13097 This is an OFFICIAL meteorite name. Abbreviation: NWA 13097 Observed fall: No Year found: 2014 Country: Morocco Mass: 162.9 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 12780 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 Jan 2020 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13097 (NWA 13097) Morocco Purchased: 2014 Feb Classification: Ordinary chondrite (L6) History: Purchased from a Moroccan dealer in 2014 Physical characteristics: Single rough stone, completely covered with fusion crust. Saw cut reveals sparse amount of metal and sulfide flakes Petrography: Microprobe examination of a polished mount shows a few indistinct chondrules present, set in a highly recrystallized matrix. Plagioclase grains range up to 200 μm in size. Kamacite, taenite, and troilite are not abundant, and are highly oxidized. Sample is cut by several terrestrial iron-oxide veins. Minor chromite is also present. Geochemistry: Olivine Fa24.9±0.3, Fe/Mn= 46.8±2.6 n=10; low-Ca pyroxene Fs20.9±0.5Wo= 1.6±0.3, Fe/Mn= 27.7±1.3 n=10; Taenite Fe= 70.4±1.8, Ni= 28.2±1.7, Co=0.27±0.09 wt%, n=10. Classification: Ordinary Chondrite (L6), weathering grade (W3) Specimens: 20.8 g and an epoxy probe mount on deposit at UAz. Fredric Stephan holds the main mass. | ||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
UAz: Lunar and Planetary Laboratory, University of Arizona, 1629 E. University Blvd., Tucson, AZ 85721, United States (institutional address; updated 14 Jan 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 2082 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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