Quartz (variety smoky and gwindel)

Val Giuv, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1980)

Specimen size: 3.9 × 3.9 × 1.5 cm = 1.54” × 1.54” × 0.59”