Alto do Sobrido Mine, Melres, Gondomar, Porto, Portugal
Sb-Au mine.
Stockwork and silicified masse types of stibnite-gold mineralisation. The gold pervades the pores, the fractures and the foliation of metasedimentary rocks.
Mining concession no. 100 "Alto do Sobrido" (Sb), Melres, Gondomar, Porto, registration date 01-08-1874.
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