For example, the frequency of the color purple of the amethyst correlates to what yoga calls the "crown chakra" and functions to calm the spirit.
例如：紫水晶的紫色頻率對應的是瑜珈所謂的頭頂「頂輪」，具有鎮定安神的功效；俗稱台灣藍寶的矽孔雀石，則對氣管、咽喉的功能有正面助益。