Quartz (variety amethyst) - Cavradi, Curnera Valley, Switzerland - fov 55 mm
Mineral: Quartz (variety amethyst)
Locality: Cavradi, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland
Dimensions: fov 55 mm