Polymetallic sulphides
Freixeda Mines, Freixeda e Vila Verde, Mirandela, Bragança, Portugal
A polished slice of polymetalic sulphide ores from the S. Jerónimo lode from which Au, Ag and Pb were extracted.
Specimen in the petrographic collection of Museu Geológico de Lisboa.
The estimated fov is 20 cm.
Photo taken by Rui Nunes in November 2022.
© Rui Nunes 2022