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Catalina 500
Basic information Name: Catalina 500
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2022
Country: Chile
Mass:help 999 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 269 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 3 Sep 2023
Writeuphelp
Writeup from MB 112:

Catalina 500        25° 4’27.39"S, 69°54’59.26"W

Antofagasta, Chile

Find: 2022 Nov

Classification: Mesosiderite

Physical characteristics: Light brown stones. Cut surface reveals a metal-rich and dark interior.

Petrography: (C. Sadaka, CEREGE) This rock is composed of 18 vol% metal (by image analysis), both kamacite and taenite, under the form of irregular grains (average size ~240 µm), and 78 vol% silicates (pyroxene and plagioclase; with ~21 vol% plagioclase, size ~400 µm). Other minerals: abundant rounded to euhedral chromite grains (up 200 µm), silica polymorphs ( average ~50 µm ), and small troilite euhedral grains. Includes alteration veins.

Geochemistry: Low Ca-pyroxene Fs34.3±1.1Wo2.9±0.3 FeO/MnO= 27.4±1.8 (n=12). Plagioclase An89.7±0.6Ab10.1±0.5Or0.3±0.1 (n=3).

Classification: Mesosiderite-B3 based on 21 vol % plagioclase abundance and recrystallized texture

Specimens: Type specimen at CEREGE

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Date:2022 Nov
Latitude:25° 4'27.39"S
Longitude:69°54'59.26"W
Mass (g):999
Pieces:Many fragments
Class:Mesosiderite
Weathering grade:moderate
Ferrosilite (mol%):34.3±1.2 (n=12)
Wollastonite (mol%):2.9±0.3
Magnetic suscept.:5.65
Classifier:J. Gattacceca, C. Sadaka, F. Dumas, CEREGE
Type spec mass (g):325
Type spec location:CEREGE
Main mass:CEREGE
Finder:Kevin Soto
Comments:Work name MB066; submitted by Carine Sadaka
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Sergey Vasiliev   
Geography:

Chile
Coordinates:
     Recommended::   (25° 4' 27"S, 69° 54' 59"W)

Statistics:
     This is 1 of 3350 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater)
     This is 1 of 3379 approved meteorites from Chile (plus 15 unapproved names) (plus 1 impact crater)
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