Las Vigas is known worldwide for its excellent amethyst quartz specimens. This is a clear example of one of these pieces. This is very rich group of quartz crystals of this variety, very transparent of good size, with an intense zoned color, deeper at the rhombohedra top terminal faces. A brilliant and definitive piece. THE MAIN CRYSTAL IS: 4,2 x 1,2 x 1,1 cm.