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El Médano 394
Basic information Name: El Médano 394
     This is an OFFICIAL meteorite name.
Abbreviation: EM 394
Observed fall: No
Year found: 2018
Country: Chile
Mass:help 3.08 kg
Classification
  history:
Recommended:  EL6    [explanation]

This is 1 of 117 approved meteorites classified as EL6.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 2 Dec 2018
Writeuphelp
Writeup from MB 107:

El Médano 394 (EM 394)        24°51’S, 70°32’W

Antofagasta, Chile

Find: 2018 Apr

Classification: Enstatite chondrite (EL6)

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.

Petrography: (J. Gattacceca, Bertrand Devouard, CEREGE) Highly recrystallized chondritic texture. No visible chondrule in the 1.5 cm2 observed section. Main minerals are enstatite, plagioclase (typical size 100 μm, to 400 μm), kamacite (typical size 300 μm, to mm), sulfides (typical size 150 μm, to 400 μm). No olivine. Sulfides include alabandite, oldhamite, troilite.

Geochemistry: Enstatite Fs0.3±0.0Wo1.6±0.0 (N=3). Plagioclase An15.2±0.2Ab80.6±0.7Or4.3±0.5 (N=2). Si in kamacite 1.4±0.0 wt% (N=5). Magnetic susceptibility log χ (× 10-9 m3/kg) = 5.51.

Classification: Enstatite chondrite (EL6). EL classification from the Si content of kamacite and the presence of alabandite. Minimal weathering.

Specimens: Type specimen 41 g at CEREGE. Main mass with ARTMET.

Data from:
  MB107
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:2018 Apr
Latitude:24°51'S
Longitude:70°32'W
Mass (g):3079
Pieces:2
Class:EL6
Weathering grade:minimal
Ferrosilite (mol%):0.3±0.0 (N=3)
Wollastonite (mol%):1.6±0.0
Magnetic suscept.:5.51
Classifier:J. Gattacceca, B. Devouard, L. K. Ruggiu, CEREGE
Type spec mass (g):44
Type spec location:CEREGE
Main mass:ArtMet collection, Poland
Finder:anonymous
Comments:work name LM67/E1; 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° 51'S, 70° 32'W)

Statistics:
     This is 1 of 1270 approved meteorites from Antofagasta, Chile (plus 1 unapproved name) (plus 1 impact crater)
     This is 1 of 1297 approved meteorites from Chile (plus 7 unapproved names) (plus 1 impact crater)
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