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Northwest Africa 13296 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13296 This is an OFFICIAL meteorite name. Abbreviation: NWA 13296 Observed fall: No Year found: 2019 Country: Algeria Mass: 319 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 226 approved meteorites classified as Eucrite-br. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 23 May 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13296 (NWA 13296) Algeria Find: 2019 Classification: HED achondrite (Eucrite, brecciated) History: Purchased by Matthew Stream in 2019 from a meteorite dealer in Algeria. Physical characteristics: Single stone with minor fusion crust. Petrography: (D. Sheikh, FSU) Sample is a brecciated eucrite containing low-calcium pyroxene, pigeonite, augite, calcic plagioclase, ilmenite, SiO2 glass, troilite, fayalite, zircon, chromite (some with Ti), and baddeleyite. Geochemistry: Low-Ca pyroxene (Fs60.5±1.1Wo2.1±0.5, range Fs57.2-62.7Wo1.5-4.2, FeO/MnO=32±3, n=60); pigeonite (Fs54.6±3.5Wo10.8±4.1, range Fs46.4-58.1Wo6.5-18.3, FeO/MnO=33±3, n=10); augite (Fs26.7±2.3Wo42.5±2.8, range Fs25.2-32.5Wo35.8-45.4, FeO/MnO=32±3, n=12); calcic plagioclase (An85.1±3.0, range An79.1-92.7, n=50), Ilmenite (Fe/(Fe+Mg)=97.8±0.3, n=4); fayalite (Fa80.1, n=1). Classification: HED achondrite (Eucrite, brecciated) Specimens: 22.51 grams at UCLA; main mass with Matthew Stream. | ||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010) |
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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 1336 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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