Meteoritical Bulletin: Entry for Catalina 400

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Catalina 400

Basic information

Name: Catalina 400
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2019
Country: Chile
Mass: 117 g

Classification
history:

Recommended:

EH5 [explanation]

This is 1 of 8 approved meteorites classified as EH5. [show all]
Search for other: EH chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites

Comments:

Approved 18 Dec 2021

Writeup

help

Writeup from MB 110:

Catalina 400 24°56’56.0"S, 69°44’32.1"W

Antofagasta, Chile

Find: 2019 Nov 26

Classification: Enstatite chondrite (EH5)

Petrography: (J. Gattacceca, CEREGE) Chondrite with small chondrules (~200 µm) and elongated enstatite crystals set in a matrix made mostly of terrestrial weathering products. Plagioclase up to 10 µm. Most opaques are weathered. Surviving primary opaque minerals are rare kamacite, daubreelite, schreibersite and a variety of iron-nickel phosphides. Graphite inclusions are found as aggregates of ~10 µm grains.

Geochemistry: Enstatite Fs_1.1±0.4Wo_0.1±0.0, range Fs_0.7-1.6(n=4). Plagioclase An_2.6Ab_93.0Or_4.4(n=2). Kamacite contains 2.90 wt% Si. Oxygen isotopic composition (J, Gattacceca, C, Sonzogni, CEREGE) from analysis of one acid-washed (HCl, EATG) 1.5 mg aliquot of a powdered 129 mg bulk sample is δ¹⁷O=2.982‰, δ¹⁸O=6.052‰ , Δ¹⁷O=-0.165‰ (slope 0.52, analytical uncertainties 0.08‰, 0.12‰, 0.03‰ respectively).

Classification: Enstatite chondrite (EH5). EH based on the Si content of metal. Type 5 based on the plagioclase size.

Specimens: Type specimen at CEREGE. Main mass at MCC

Data from:
  MB110
  Table 0
  Line 0:

State/Prov/County:	Antofagasta
Date:	2019 Nov 26
Latitude:	24°56'56.0"S
Longitude:	69°44'32.1"W
Mass (g):	117
Pieces:	7
Class:	EH5
Weathering grade:	high
Ferrosilite (mol%):	1.1±0.4 (n=4)
Wollastonite (mol%):	1.0±0.0
Magnetic suscept.:	4.53
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	21
Type spec location:	CEREGE
Main mass:	MMC
Finder:	Rodrigo Martinez
Comments:	work name RM690; submitted by Jérôme Gattacceca

Plots:

O isotopes:

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)

Find references in NASA ADS:
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Photos:

Credit	Photos
Public domain photographs:
Jerome Gattacceca

Geography:

Chile

Chile

Coordinates:
Recommended::	(24° 56' 56"S, 69° 44' 32"W)

Statistics:
This is 1 of 2243 approved meteorites from Antofagasta, Chile (plus 6 unapproved names) (plus 1 impact crater)
This is 1 of 2272 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)

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