Peridot is a deep yellowish-green transparent variety of olivine. It is sometimes called chrysolite. Peridot is the birthstone for August and the 15th anniversary gemstone. It is one of the few gemstones that occurs in only one color. Peridot can be found in mafic and ultramafic rocks occurring in lava and peridotite xenoliths of the mantle.

Peridot is the gem form of Olivine, a magnesium iron silicate mineral of the forsterite-fayalite family, with the amount of iron being responsible for the color. While Olivine is an abundant mineral, gem-quality Peridot is rather rare, especially in larger stones.

Peridot has many healing properties. It is believed to help reduce stress and anxiety, promote relaxation and restful sleep, and enhance self-confidence and assertiveness. It is also believed to help with digestive problems and liver function.

In conclusion, Peridot is a beautiful gemstone with many unique properties. Its deep yellowish-green color makes it a popular choice for jewelry. Its healing properties make it a valuable addition to any collection.