Quartz (variety smoky quartz) - Giuv glacier (Giuv Gletscher), Switzerland - 8.6 x 6.5 cm
Mineral: Quartz (variety smoky quartz)
Locality: Giuv glacier (Giuv Gletscher), Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland
Dimensions: 8.6 x 6.5 cm