His right eye is believed to be the sun, the left eye is the moon, and his third eye represents fire.
His left and right eyes indicate his activity in the world.
Often Shiva is shown with half open eyes, signifying the never ending, ongoing nature of the birth and destruction of the universe.
Used as a stone of strength and protection since ancient times, sardonyx is associated with courage, happiness and clear communication.
The spiritual values of red and white-banded and red bullseye sardonyx make these stones particularly powerful.