Peridot is a variety of olivine (forsterite) rich in magnesium. Its green color depends on the iron content within the stone structure. Peridot is found in silica-deficient rocks such as volcanic basalt and in pallasitic meteorites. Gem-quality peridot is rare to find on the Earth's surface due to its susceptibility to weathering during transport from the depth of the mantle to the surface. The ancient Egyptians believed that peridot was sent to Earth by the explosion of a star and carried its healing powers. Peridot is Egypt's national gem known as the Sun Gem.
Dimensions
Single stone size (cm): 0.5 approx
Earring Size (cm): about 5
Hook thickness (cm): 0.5
Property
Chemical formula: Mg, Fe) 2SiO4
Mohs scale: 3.2 / 4.3
Relative density: 6.5 / 7
Crystalline System: Orthorhombic
