“Goethite after cubic pyrite, often known as limonite. Size: 44 mm x 30 mm. Mass: 35 g. Field collected by myself in 1966 in Montjuïc, a mountain park in the city of Barcelona, Catalonia. Interesting especially for local collectors.”

“Goethite after cubic pyrite, often known as limonite. Size: 44 mm x 30 mm. Mass: 35 g. Field collected by myself in 1966 in the area next to the Fossar de la Pedrera, Montjuïc, a mountain park in the city of Barcelona, Catalonia. Interesting especially for local collectors.”