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Northwest Africa 11413 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11413 This is an OFFICIAL meteorite name. Abbreviation: NWA 11413 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: 28 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 133 approved meteorites classified as EL6. [show all] Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 23 Sep 2017 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 11413 (NWA 11413) Morocco, Laayoun, (Northwest Africa) Purchased: May 2014 Classification: Enstatite chondrite (EL6) History: Collected by nomads in Western Sahara and purchased by Nicola Castellano at the Genova Mineral Fair in May 2014 from a Moroccan dealer. Physical characteristics: A single piece weighing 28 g with no fusion crust. Petrography: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi); The thin section texture consists of a fine-grained, pyroxene-dominant matrix, with minor plagioclase. No chondrules are visible. The main opaque phases are kamacite and troilite, partially weathered to iron oxides. Blades of alabandite and daubreelite are occasionally visible in troilite. The presence of alabandite, An content of plagioclase and Si content of kamacite point to a classification as EL chondrite; Geochemistry: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi) Orthopyroxene (Fs0.4En98.2Wo1.4), plagioclase (An15.0Or4.4); Si in kamacite = 0.6 wt.%, Ti in troilite = 6.1 wt.% Classification: Enstatite chondrite (EL6); S1; W3 Specimens: A total of 7.0 g specimen is on deposit at MSN-FI. Castellano holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB106 Table 0 Line 0: |
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Institutions and collections |
MSN-FI: Museo di Storia Naturale “La Specola”, Sez. Mineralogia – Sistema Museale dell'Università degli Studi di Firenze
Via Giorgio La Pira, 4 – 50121 Firenze, Italy; Website (institutional address; updated 24 Oct 2022) UniFi: Università degli Studi di Firenze, P.zza S. Marco, 4 - 50121 Firenze, Italy (institutional address; updated 14 Sep 2013) |
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Catalogs: |
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References: | Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: |
Statistics: This is 1 of 7 approved meteorites from Morocco, Laayoun, (Northwest Africa) This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
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