Quartz with inclusions of Chlorite and Pyrophillite

Viaplana, Sils, Thusis, Domleschg, Hinterrhein Valley, Grischun (Grisons; Graubünden)  Switzerland (±1958)

Specimen size: 7.6 × 3.9 × 3.6 cm = 2.99” × 1.54” × 1.42”