Mimetite with Goethite

Potosí Mine, Santo Domingo (Francisco Portillo), Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua  Mexico

Specimen size: 9.4 × 8.1 × 5.1 cm = 3.70” × 3.19” × 2.01”
Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”