Actually peridot (olivine) is a variety of the mineral olivine (a beautiful name "olivine" comes from the color which reminds of olives). Mainly, only two varieties of olivine are deemed to be suitable for jewelry - chrysolite and peridot (however, nowadays chrysolite is classified as a separate category, and some modern sources believe that peridot is a variety of chrysotile).

The word "peridot" is most often used by German and British mineralogists, but the meaning of the word is still a mystery.
Peridots arecrystals of olivine in green, golden-green and dark yellow color, which are well suited to be used for jewelry works. Peridot looks very elegant and beautiful. Peridots’ green varieties are very similar to emeralds.

Distinctive feature of peridot is noticeable even by the naked eye – it is the stone’s birefringence effect.

Peridot is believed to develop intuition and make its owner spiritually stronger (in order to enhance the effect of peridot it should be framed in gold).

Peridot can positively effect on the heart, by improving its work, and on the spine. Peridot also helps with cold related diseases. And it is believed that peridot has a beneficial influence on vision, and is able to get rid of eye diseases.