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Northwest Africa 11887
Basic information Name: Northwest Africa 11887
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11887
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 61 g
Classification
  history:
Recommended:  Mesosiderite    [explanation]

This is 1 of 176 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 3 Aug 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11887 (NWA 11887)

(Northwest Africa)

Purchased: 2015

Classification: Mesosiderite

Physical characteristics: Cut surface reveals abundant metal, up to cm size.

Petrography: (J. Gattacceca, CEREGE) Main minerals are pyroxene (to 200 μm), interstitial plagioclase (to 150 μm), kamacite (to cm). Other minerals: troilite, silica polymorph, merrillite. Silicate show triple junctions.

Geochemistry: Orthopyroxene Fs15.9Wo0.6, FeO/MnO=34.7 (N=1). Plagioclase An89.9Ab9.6Or0.5 (N=3).

Classification: Mesosiderite

Specimens: 16 g at CEREGE. Main mass with Labenne

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015
Mass (g):61
Pieces:1
Class:Mesosiderite
Weathering grade:minimal
Ferrosilite (mol%):15.9 (N=1)
Wollastonite (mol%):0.60
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):16
Type spec location:CEREGE
Main mass:Labenne Luc
Comments:work name LL82; 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)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6505 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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