This lovely gemstone only comes in shades of green, from pale yellowish green to brilliant chartreuse to deep olive green. Formed deep under the Earth's crust (25-55 miles down), Peridot is a very hard gemstone that reaches us through volcanic activity. Let this gemstone add depth, clarity, and happiness through gratitude. In ancient times it was considered an aid to friendship and was also believed to free the mind of envious and negative thoughts. Peridot has long been prized for its healing powers, and supports the 4th or Heart Chakra.