Quartz (variety smoky and gwindel) with Chlorite

Drum Tobel, Sedrun, Tujetsch (Tavetsch), Grischun (Grisons; Graubünden)  Switzerland (±1940)

Specimen size: 5.3 × 5.2 × 2.7 cm = 2.09” × 2.05” × 1.06”