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El Médano 538
Basic information Name: El Médano 538
     This is an OFFICIAL meteorite name.
Abbreviation: EM 538
Observed fall: No
Year found: 2019
Country: Chile
Mass:help 35.4 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2024)  H6
Recommended:  H6    [explanation]

This is 1 of 7010 approved meteorites (plus 6 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 3 Sep 2023
Writeuphelp
Writeup from MB 112:

El Médano 538 (EM 538)        24°38.449’S, 70°17.837’W

Antofagasta, Chile

Find: 2019 Nov 5

Classification: Ordinary chondrite (H6)

Petrography (E. Jacquet, B. Doisneau, MNHNP): Recrystallized chondrite, with areas rich in triple junctions, others with interconnected plagioclase networks; some millimeter-size metal grains coexisting with more numerous smaller ones; few discernible chondrule relicts.

Geochemistry: Mineral composition and geochemistry: plagioclase An11.2±0.4Ab82.3±1.4Or6.5±1.1 (N=3); kamacite Ni=6.4±12.7 wt% (N=2); merrillite Fe=0.7±6.5 wt% (N=2)

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:2019 Nov 5
Latitude:24°38.449'S
Longitude:70°17.837'W
Mass (g):35.35
Pieces:1
Class:H6
Weathering grade:W2
Fayalite (mol%):19.9±0.5 (N=3)
Ferrosilite (mol%):17.3±0.3 (N=3)
Wollastonite (mol%):1.5±0.0
Magnetic suscept.:5.05
Classifier:E. Jacquet, B. Doisneau, MNHNP
Type spec mass (g):35.35
Type spec location:MNHNP
Main mass:MNHNP
Finder:Matthieu Gounelle
Comments:Field name: MA140; submitted by B. Doisneau
Institutions
   and collections		 MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Cartier C., Consolmagno G., Goodrich C., Greshake A., Gross J., Joy K. H., Miao B. and Zhang B. (2024) The Meteoritical Bulletin, no. 112. Meteoritics & Planetary Science 59, 1820–1823. ?
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Geography:

Chile
Coordinates:
     Recommended::   (24° 38' 27"S, 70° 17' 50"W)

Statistics:
     This is 1 of 3632 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater)
     This is 1 of 3661 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)
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