The stone in this pendant is a great visual to exemplify energy flowing. It is a slice of an amethyst stalactite that reveals individual crystals projecting outward from a striated core of layers upon layers of deposition. Each drop of mineral-rich water that falls from the top of a cave deposits a thin layer of calcite that over time forms the visible layers within the stalactite. Different colors mean different mineral composition of the water droplets at that time. You can see the crystalline structure covered up by each subsequent layer. I have left an opening in the back of the pendant to allow light to pass through.