Price: Now $15.00 (Was $30.00)
Description: A vein of an unidentified copper selenide mineral. Also present are a few small sprays of an unidentified light blue selenate. There are twelve Type Locality minerals from here, all of them containing selenium. Specimen measures 87x45x35mm.
Below: Unidentified Copper Selenide, El Dragón mine, Porco Municipality, Antonio Quijarro Province, Potosí, Bolivia.
