Doubly terminated smoky Quartz

Val Giuv, side valley, Tujetsch (Tavetsch), Municipality of Tujetsch (Tavetsch), Surselva District, Grischun (Grisons; Graubünden)  Switzerland

Specimen size: 3.3 × 2.5 × 1.6 cm = 1.30” × 0.98” × 0.63”