Smoky Quartz with Chlorite and amphibole

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

Specimen size: 9.8 × 5.3 × 3.3 cm = 3.86” × 2.09” × 1.30”
Main crystal size: 3.4 × 1.1 cm = 1.34” × 0.43”