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Northwest Africa 13486
Basic information Name: Northwest Africa 13486
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13486
Observed fall: No
Year found: 2019
Country: Algeria
Mass:help 21 g
Classification
  history:
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 260 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 14 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13486 (NWA 13486)

Algeria

Find: 2019

Classification: Martian meteorite (Shergottite)

Physical characteristics: Light grey relatively coarse crystalline rock.

Petrography: (J. Gattacceca, CEREGE) Igneous rock with doleritic texture. Main minerals are zoned pyroxene and maskelynite, with grain size ~500 μm. Other minerals: silica polymorph (100 μm), Fe-Ti oxides (100 μm).

Geochemistry: Pyroxene Fs38.4±11.4Wo19.1±7.3, FeO/MnO = 32.6±3.4 (n=6). Plagioclase An61.3Ab38.3Or0.4 (n=2).

Classification: Achondrite (shergottite).

Specimens: Type specimen at CEREGE. Main mass with J. Bassemon.

Data from:
  MB109
  Table 0
  Line 0:
Date:2019
Mass (g):21
Pieces:10
Class:Martian (shergottite)
Magnetic suscept.:2.95
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):4.43
Type spec location:CEREGE
Main mass:J. Bassemon
Comments:work name CM59; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1133 approved meteorites from Algeria (plus 27 unapproved names) (plus 4 impact craters)

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