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Northwest Africa 13713 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13713 This is an OFFICIAL meteorite name. Abbreviation: NWA 13713 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 54 approved meteorites classified as Winonaite. [show all] Search for other: Primitive achondrites, Winonaites | ||||||||||||||||||||||||||
Comments: | Approved 20 Mar 2021 | ||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 13713 (NWA 13713) (Northwest Africa) Purchased: October 2020 Classification: Primitive achondrite (Winonaite) Physical characteristics: A single brown flat stone. Cut face reveals a metal-rich interior with metal areas up to cm in size. Petrography: (J. Gattacceca, CEREGE) This meteorite is composed of a silicate fraction and a metal fraction in similar abundances. The silicate fraction shows triple junctions and is composed of olivine, orthopyroxene, and less abundant Ca-pyroxene (grainsize 100 μm). No plagioclase was observed. Other minerals: metal (as 50 μm grains in between silicate crystals, and as μm-sized inclusions in silicates), and sulfide. The metal fraction is under the form of centimetric grains forming a network enclosing silicates. Geochemistry: Olivine Fa2.4±0.2, FeO/MnO = 6.7±0.7 (n=4). Orthopyroxene Fs7.6±0.2Wo2.0±0.1, FeO/MnO = 6.9±1.0 (n=3). Ca-pyroxene Fs3.0Wo44.1 (n=1). Kamacite Fe93.0Ni6.5Co0.52 (n=1, wt%). Taenite Fe66.1Ni33.7Co0.26 (n=3, wt%). Classification: Winonaite. Metal-rich. Specimens: Type specimen at CEREGE. Main mass with Kuntz. | ||||||||||||||||||||||||||
Data from: MB110 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. 110, in preparation (2021)
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Geography: |
Statistics: This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names) |