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Northwest Africa 13487
Basic information Name: Northwest Africa 13487
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13487
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 58 g
Classification
  history:
Recommended:  Mesosiderite    [explanation]

This is 1 of 216 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 14 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13487 (NWA 13487)

(Northwest Africa)

Purchased: 2019 Jun

Classification: Mesosiderite

History: Bought in Ensisheim in June 2019 from Norddine Azelmat.

Physical characteristics: A dark brown irregular stone.

Petrography: (J. Gattacceca, CEREGE) Brecciated rock with a silicate fraction composed of plagioclase and low-Ca pyroxene (typical size 200 m), and less abundant Ca-pyroxene. Abundant contorted multi-mm sized metal grains (~30 vol%). Other minerals: troilite, merrillite, SiO2.

Geochemistry: Pyroxene Fs31.3±0.1Wo2.2±0.1, FeO/MnO = 24.1 (n=2). Plagioclase An91.6Ab8.2Or0.3 (n=2).

Classification: Mesosiderite.

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

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Ensisheim (France)
Date:P 2019 Jun
Mass (g):58
Pieces:1
Class:Mesosiderite
Weathering grade:low
Ferrosilite (mol%):31.3±0.1 (n=2)
Wollastonite (mol%):2.2±0.1
Magnetic suscept.:5.96
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):13
Type spec location:CEREGE
Main mass:Jean Redelsperger
Comments:work name JR077; 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)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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