Peridot is a magnesium iron silicate mineral. Itís crystal system is orthorhombic and it generally forms in short, compact prisms which are vertically striated. Itís olive to lime green colour is caused by iron. The name Peridot is of Greek origin, but the original meaning is not known. 
For three thousands years, Peridot has been gathered and mined on the inhospitable Egyptian Island of Zagbargad. The name Zagbargad is Arabic for Olivine, or Peridot. The Egyptians made Peridot beads some 2,500 years ago.
It was used for rings and other jewellery in Greece and Rome in the third and fourth centuries. In the 1800s, Peridot was a popular gemstone in the Untied States and Europe. Important sources of Peridot are in Pakistan, Burma, Australia, Brazil, South Africa and the United States.
Since ancient times, Peridot was viewed as a symbol of the sun, and in Greece it was believed to confer the energy of royalty to the wearer.

Peridot is said to help remove blockage to receiving. Some consider many spiritual people are adept at giving of their love, time and energy, but may not be so good at receiving. Peridot may assist in dissipating these blockages and teaching one to receive with grace and gratitude.
Physically Peridot is said to be used to alleviate heaviness of heart and all manner of heart-realted imbalances. It may help strengthen the blood and may be used to counter anemia and poor oxygenation. It is said to be an excellent stone to use in recovery from tobacco or inhalant addiction.