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Northwest Africa 13092 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13092 This is an OFFICIAL meteorite name. Abbreviation: NWA 13092 Observed fall: No Year found: 2014 Country: Morocco Mass: 174.2 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 6775 approved meteorites (plus 6 unapproved names) classified as H6. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||
Comments: | Approved 18 Jan 2020 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13092 (NWA 13092) Morocco Purchased: 2014 Feb Classification: Ordinary chondrite (H6) History: Purchased from a Moroccan dealer in 2014 Physical characteristics: Physical Characteristics: Covered with black fusion crust. Saw cut reveals abundant metal and sulfides. Petrography: (AS Djakaria and IJ Ong, UAz) Microprobe examination of a polished mount shows chondrules of 500-1500 μm. Plagioclase grains 100-200 μm observed. Large, moderately oxidized, kamacite and taenite grains are common and are connected by a widespread set of complex, convoluted, small metal veins incorporating numerous small silicate inclusions. Troilite, chromite, merrillite, and chlorapatite are also present. Geochemistry: Mineral compositions and geochemistry: (AS Djakaria and IJ Ong, UAz) Olivine Fa18.9±0.2, Fe/Mn=36.9±1.7, n=10; low-Ca pyroxene Fs16.8±0.4Wo1.7±0.1, Fe/Mn=22.9±1.5, n=10; Kamacite Fe=91.51±0.82, Ni=6.93±0.21, Co=0.51±0.03, n=3. Classification: Ordinary Chondrite (H6), Weathering grade W2. Specimens: 22.4 g and epoxy mount 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 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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