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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 Meteoritical Bulletin, no. 110, in preparation (2021)
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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 2261 approved meteorites from Antofagasta, Chile (plus 6 unapproved names) (plus 1 impact crater)
     This is 1 of 2290 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)
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