Volborthite on Dickite

Milpillas Mine, level 26, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (04/2015)

Specimen size: 3 × 2.2 × 2.1 cm = 1.18” × 0.87” × 0.83”
Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”