Meteoritical Bulletin: Entry for El Médano 478

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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: 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

Writeup

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:

Credit	Photos
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)

Proximity search:

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