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Northwest Africa 13704
Basic information Name: Northwest Africa 13704
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13704
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 17 g
Classification
  history:
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 249 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 8 Apr 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13704 (NWA 13704)

(Northwest Africa)

Find: 2020

Classification: Martian meteorite (Shergottite)

History: Purchased from a dealer in Morocco

Physical characteristics: Grey fragments without crust

Petrography: (J. Gatacceca, CEREGE) Igneous rock with intersertal texture. Main minerals are zoned Ca-pyroxene and maskelynite with grain size ~500 µm. Pyrrhotite and exsolved Fe-Ti oxides (to 500 µm) are present.

Geochemistry: Ca-pyroxene range from Fs19.8Wo38.0 to Fs57.7Wo13.9, FeO/MnO = 34.6±5.6 (n=4). Maskelynite An44.4Ab53.1Or2.6 (n=2).

Classification: Martian meteorite (shergottite)

Specimens: Type specimen at CEREGE. Main mass with Isabelle Pothier.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:2020
Mass (g):17
Pieces:many
Class:Martian (shergottite)
Weathering grade:low
Magnetic suscept.:3.16
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):3.4
Type spec location:CEREGE
Main mass:Isabelle Pothier
Finder:anonymous
Comments:work name CM61; 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. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7688 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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