Chrysolite - See Olivine
Olivine - A mineral silicate of iron and magnesium, principally (Mg, Fe)2SiO4, found in igneous and metamorphic rocks and used as a structural material in refractories and in cements. Also called chrysolite.
Chrysolite/Olivine is known by many names. Besides its actual mineral names, forsterite and fayalite, it is known as "chrysolite", "evening emerald" and peridot.
Peridot has been mined as a gemstone for an estimated four thousand years or better, and is mentioned in the Bible under the Hebrew name of pitdah. Peridot gems along with other gems were probably used in the fabled Breastplates of the Jewish High Priest, artifacts that have never been found. It is possible that Peridot is the gem referred to as 'Carbuncle' - listed in Exodus 28:15-30 and also included in the listing of the gems of the King of Tyrus (Ezekiel 28:13).