Prehnite, Epidote – Arvigo, Switzerland

Classic prehnite, epidote and adularia association from the gneiss quarries at Arvigo, Switzerland. Lustrous and translucent, helmet-shaped, pastel-green prehnite crystals. The adularia covered matrix is richly sprinkled with gemmy, acicular, olive-green epidote crystals. Collecting is now forbidden at the quarries.

• Locality : Gneiss quarries, Arvigo, Calanca Valley, Misox (Mesolcina Valley), Grischun, Switzerland
• Size : 75 mm x 67 mm x 35 mm