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Caleta el Cobre 025
Basic information Name: Caleta el Cobre 025
     This is an OFFICIAL meteorite name.
Abbreviation: CeC 025
Observed fall: No
Year found: 2018
Country: Chile
Mass:help 777 g
Classification
  history:
Recommended:  EH3    [explanation]

This is 1 of 136 approved meteorites classified as EH3.   [show all]
Search for other: EH chondrites, Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites
Comments: Approved 11 Dec 2018
Writeuphelp
Writeup from MB 107:

Caleta el Cobre 025        ~24°20’S, ~70°15’W

Antofagasta, Chile

Find: 2018 Apr

Classification: Enstatite chondrite (EH3)

History: The stone was found lying at the surface in the Atacama desert in April 2018.

Physical characteristics: A single dark-brown stone. Cut face reveals a dark interior with abundant metal and small chondrules.

Petrography: (J. Gattacceca, Bertrand Devouard, CEREGE) Chondrite with well-defined chondrule (average apparent diameter 270±150 μm, N=33) with clear mesostasis. Main mineral is enstatite. Abundant kamacite and sulfide in the form of rounded composite grains with typical size 100 μm. Sulfides display a wide compositional range and include troilite, alabandite, and niningerite.

Geochemistry: Enstatite Fs2.7±2.1Wo0.8±0.9, Fs PMD=58% (N=7). Si in kamacite 2.8±0.2 wt% (N=5). Magnetic susceptibility log χ (× 10-9 m3/kg) = 5.24.

Classification: Enstatite chondrite (EH3). EH classification from the Si content of kamacite. Minimal weathering. This meteorite was found 2 km away from the Caleta el Cobre 024 EL6 meteorite.

Specimens: Type specimen 67 g at CEREGE. Main mass with ARTMET.

Data from:
  MB107
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:2018 Apr
Latitude:~24°20'S
Longitude:~70°15'W
Mass (g):777
Pieces:1
Class:EH3
Weathering grade:minimal
Ferrosilite (mol%):2.7±2.1 (N=7)
Wollastonite (mol%):0.8±0.9
Magnetic suscept.:5.24
Classifier:J. Gattacceca, B. Devouard, L.K. Ruggiu, CEREGE
Type spec mass (g):67
Type spec location:CEREGE
Main mass:ArtMet collection, Poland
Finder:anonymous
Comments:work name LM77/E44; 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. 107, in preparation (2018)
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Geography:

Chile
Coordinates:
     Recommended::   (24° 20'S, 70° 15'W)

Statistics:
     This is 1 of 1313 approved meteorites from Antofagasta, Chile (plus 1 unapproved name) (plus 1 impact crater)
     This is 1 of 1340 approved meteorites from Chile (plus 7 unapproved names) (plus 1 impact crater)
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