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El Médano 481
Basic information Name: El Médano 481
     This is an OFFICIAL meteorite name.
Abbreviation: EM 481
Observed fall: No
Year found: 2019
Country: Chile
Mass:help 3.07 kg
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 614 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 11 Nov 2021
Writeuphelp
Writeup from MB 110:

El Médano 481 (EM 481)        24°48’05.3"S, 70°05’49.5"W

Antofagasta, Chile

Find: 2019 Jan 09

Classification: Carbonaceous chondrite (CO3)

Physical characteristics: Brownish stone. Cut surface reveals brown interior with small chondrules.

Petrography: (J. Gattacceca, CEREGE) Chondrite with well delineated small chondrules (~150 µm) set in an abundant fine-grained iron-rich matrix. Opaque minerals are metal and troilite. Small CAIs are present.

Geochemistry: Olivine Fa14.9±13.1, range Fa0.6-35.8 (n=6).

Classification: Carbonaceous chondrite (CO3). Likely paired with El Médano 216

Specimens: Type specimen at CEREGE. Main mass at MCC

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:2019 Jan 09
Latitude:24°48'05.3"S
Longitude:70°05'49.5"W
Mass (g):3065
Pieces:1
Class:CO3
Weathering grade:moderate
Fayalite (mol%):16.9±13.1 (n=6)
Magnetic suscept.:4.44
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):33
Type spec location:CEREGE
Main mass:MMC
Finder:Rodrigo Martinez
Comments:work name RM663; 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)
MMC: Museo del Meteorito, Tocopilla 401, San Pedro de Atacama, Chile. or Alonso de Ercilla 1250, La Herradura, Coquimbo, Chile, Chile; Website (institutional address; updated 11 Mar 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:

Chile
Coordinates:
     Recommended::   (24° 48' 5"S, 70° 5' 49"W)

Statistics:
     This is 1 of 2272 approved meteorites from Antofagasta, Chile (plus 8 unapproved names) (plus 1 impact crater)
     This is 1 of 2301 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater)
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