Quartz, Pyrite - Potosí Mine, Mexico - 7.3 x 6.3 cm
Mineral: Quartz, Pyrite
Locality: Potosí Mine, level 10, Santo Domingo (Francisco Portillo), Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico
Dimensions: 7.3 x 6.3 cm