Phantom Amethyst Cathedral Cluster This stunning Phantom Amethyst Cathedral Cluster features layered purple crystal growth with visible internal phantom formations and multiple large defined points, giving the piece beautiful depth and structure. Amethyst is a purple variety of Quartz, coloured by trace amounts of iron and natural irradiation. Phantom formations occur when a crystal’s growth is interrupted and later resumes, leaving the outline of an earlier growth stage visible within the crystal. Cathedral formations are characterised by multiple inter-grown points rising together in a larger clustered structure. Amethyst is traditionally associated with peace, intuition, spiritual awareness and protection. Display away from prolonged direct sunlight to help preserve its colour. Handle with care and clean gently with a soft, dry cloth.