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Northwest Africa 12730
Basic information Name: Northwest Africa 12730
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12730
Observed fall: No
Year found: 2017
Country: Algeria
Mass:help 163 g
Classification
  history:
Recommended:  Mesosiderite    [explanation]

This is 1 of 188 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 8 Jul 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12730 (NWA 12730)

Algeria

Find: 2017

Classification: Mesosiderite

History: Bought by Zaid Sbiti in 2017, then bought from Mohamed Elguirah in October 2018

Physical characteristics: Full stone with remants of fusion crust

Petrography: (J. Gattacceca, CEREGE) Stony-iron meteorite with silicate grain size 500 µm (pyroxene plagioclase) and abundant metal with grain size several mm. Accessory minerals include chromite, silica polymorph (to 50 µm), troilite.

Geochemistry: Low-Ca pyroxene Fs32.5±0.3Wo3.7±0.8, FeO/MnO 23.4±1.8 (n=3). Plagioclase An92.5±1.2Ab7.4±1.1Or0.1±0.1 (n=3).

Classification: Mesosiderite.

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.

Data from:
  MB108
  Table 0
  Line 0:
Date:2017
Mass (g):163
Pieces:1
Class:Mesosiderite
Weathering grade:low
Ferrosilite (mol%):32.5±0.3 (n=3)
Wollastonite (mol%):3.7±0.8
Magnetic suscept.:5.80
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):22.6
Type spec location:CEREGE
Main mass:Jean Redelsperger
Comments:work name JR061; 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)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 979 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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