Catalina 500 					Location 25° 4' 27.39" S, 69° 54' 59.26" W
Chile  
First find in 2022, November
Mesosiderite (group B3)
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.