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El Médano 478
Basic information Name: El Médano 478
     This is an OFFICIAL meteorite name.
Abbreviation: EM 478
Observed fall: No
Year found: 2019
Country: Chile
Mass:help 1365 g
Classification
  history:
Recommended:  H    [explanation]

This is 1 of 104 approved meteorites (plus 2 unapproved names) classified as H.   [show all]
Search for other: H chondrites, Ordinary chondrites
Comments: Approved 8 Aug 2021
Writeuphelp
Writeup from MB 110:

El Médano 478 (EM 478)        24°42.156’S, 70°03.713’W

Antofagasta, Chile

Find: 2019

Classification: Ordinary chondrite (H)

Petrography: (J. Gattacceca, CEREGE) Chondrules in a shock-darkened matrix containing abundant metal-troilite eutectic mixtures, and abundant ~100 µm vesicles.

Classification: Equilibrated H chondrite, shock darkened. Assigning a petrographic type is difficult in view of the pervasive melting of the matrix.

Specimens: Type specimen at CEREGE. Main mass with ArtMet

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:2019
Latitude:24°42.156'S
Longitude:70°03.713'W
Mass (g):1365
Pieces:7
Class:H
Fayalite (mol%):19.6 (n=1)
Ferrosilite (mol%):17.1 (n=1)
Wollastonite (mol%):1.5
Magnetic suscept.:5.34
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):23
Type spec location:CEREGE
Main mass:ArtMet collection, Poland
Finder:anonymous
Comments:work name G20; 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)
ARTMET: Meteorites and Art, Poland (private address; updated 23 Feb 2018)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Photos:
CreditPhotos
Public domain photographs:
Jerome Gattacceca   
Geography:

Chile
Coordinates:
     Recommended::   (24° 42' 9"S, 70° 3' 43"W)

Statistics:
     This is 1 of 2320 approved meteorites from Antofagasta, Chile (plus 9 unapproved names) (plus 1 impact crater)
     This is 1 of 2349 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater)
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