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Northwest Africa 13492 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13492 This is an OFFICIAL meteorite name. Abbreviation: NWA 13492 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||
Comments: | Approved 14 Nov 2020 | ||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 13492 (NWA 13492) (Northwest Africa) Purchased: 2019 Oct Classification: HED achondrite (Eucrite) History: Bought from a dealer from northwest Africa. Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mostly subophitic texture. Grain size is ~1.5 mm grain size although some clasts have smaller grainsize. Main minerals are low-Ca pyroxene (exsolved) and plagioclase. Other minerals: silica polymorph (to 100 μm), ilmenite, troilite, metal. Geochemistry: Low-Ca pyroxene Fs65.5±1.9Wo2.2±0.5, FeO/MnO = 31.3±0.8 (n=5). Plagioclase An87.0Ab12.6Or0.4 (n=2). Classification: Achondrite (eucrite). The low-Ca pyroxene is unusually iron rich (Fs65.6). | ||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 29 Oct 2018) Kuntz: Fabien Kuntz, France; Website (private address) |
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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 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |