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Northwest Africa 13713
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:help 118.3 g
Classification
  history:
Recommended:  Winonaite    [explanation]

This is 1 of 54 approved meteorites classified as Winonaite.   [show all]
Search for other: Primitive achondrites, Winonaites
Comments: Approved 20 Mar 2021
Writeuphelp
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:
Place of purchase:Guelmin, Morocco
Date:P Oct 2020
Mass (g):118.3
Pieces:1
Class:Winonaite
Weathering grade:low
Magnetic suscept.:5.64
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):20.38
Type spec location:CEREGE
Main mass:Kuntz
Finder:anonymous
Comments:work name K510; submitted by Jérôme Gattacceca
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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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