Silver with amorphous hydrated (Si-Mn)

Uchucchacua Mine, Oyón Province, Lima Department  Peru (01/2001)

Specimen size: 4.2 × 4 × 4.4 cm = 1.65” × 1.57” × 1.73”
Main crystal size: 2.7 × 0.7 cm = 1.06” × 0.28”