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Northwest Africa 7386
Basic information Name: Northwest Africa 7386
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7386
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 131 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 213 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 8 Nov 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7386 (NWA 7386)

(Northwest Africa)

Purchased: 2011 Jul 18

Classification: Mesosiderite

History: The stones were purchased in Erfoud, Morocco, in 2011.

Physical characteristics: Three stones totalling 131 g.

Petrography: (J. Gattacceca, CEREGE) The stony part shows a cataclastic texture, with silicate mineral fragments up to several mm in a coarse matrix (>20 µm). Modal abundances: pyroxene 47%, plagioclase 15%, FeNi metal + troilite + weathering products 37%. Chromite, ilmenite, and silica are present. Magnetic suscpetibility log χ = 4.96 (X in 10-9 m3/kg).

Geochemistry: Orthopyroxene Fs30.2Wo2.5 (FeO/MnO=25.6). Plagioclase An95.6Ab4.3Or0.1. Chromite Cr/(Cr+Al)= 0.82.

Classification: Mesosiderite. Severe weathering.

Specimens: 23 g and one polished section are on deposit at CEREGE. P. Thomas holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2011 Jul 18
Mass (g):131
Pieces:3
Class:Mesosiderite
Weathering grade:Severe
Ferrosilite (mol%):30.2±1.7
Wollastonite (mol%):2.6±0.9
Magnetic suscept.:4.96
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):23
Type spec location:CEREGE
Main mass:P. Thomas
Comments:Submitted by J. 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. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7810 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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