Meteoritical Bulletin: Entry for Northwest Africa 12960

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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: 94 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	Martian (shergottite)
Recommended:			Martian (shergottite) [explanation]

This is 1 of 300 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all]
Search for other: Martian meteorites

Comments:

Approved 16 Nov 2019

Writeup

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 Fs_51.2±21.3Wo_21.4±6.2, range Fs_23.1-78.3, Fe/Mn=35.8±5.8 (n=12). Maskelynite An_50.2±3.1Ab_47.1±2.1Or_2.7±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 10 Jun 2023)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

Find references in NASA ADS:
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Geography:

Algeria

Coordinates:

Unknown.

Statistics:
This is 1 of 1306 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

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