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Northwest Africa 12960
Basic information Name: Northwest Africa 12960
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12960
Observed fall: No
Year found: 2019
Country: Algeria
Mass:help 94 g
Classification
  history:
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 200 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 16 Nov 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12960 (NWA 12960)

(Northwest Africa)

Purchased: 2019

Classification: Martian meteorite (Shergottite)

History: Found in Ageria in the Ouargla area. Purchased in Morocco in 2019.

Physical characteristics: Crusted stones. Cut surface reveals a greenish fine-grained interior.

Petrography: (J. Gattacceca, CEREGE) Igneous rock with doleritic texture. Mains minerals are pyroxene (typical size 500 µm, strongly zoned) and maskelynite, Fe oxides (to 150 µm), and sulfides (to 50 µm).

Geochemistry: Pyroxene Fs51.2±21.3Wo21.4±6.2, range Fs23.1-78.3, Fe/Mn=35.8±5.8 (n=12). Maskelynite An50.2±3.1Ab47.1±2.1Or2.7±1.3 (n=5). Magnetic susceptibiilty log χ (× 10-9 m3/kg) = 3.50.

Classification: Martian meteorite (shergottite). Possibly paired with NWA 12550.

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

Data from:
  MB108
  Table 0
  Line 0:
Date:P 2019
Mass (g):94
Pieces:several
Class:Martian (shergottite)
Magnetic suscept.:3.50
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):19
Type spec location:CEREGE
Main mass:Isabelle Pothier
Comments:work name CM31; 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. 108, in preparation (2019)
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 980 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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