Peridot

Chemical Formula: (Mg,Fe)2SiO4 Magnesium iron silicate
Refractive Index:1.654-1.690
Hardness：6.5-7 Mohs
Orignal: China has become of the largest producers of superior peridot, North Korea,Brizil,Austrialia,Norseland, Pakistan,Egypt ect.

Peridot is the birthstone of August. It is known as “Jewel of the Sun”. Peridot occurs with excellent transparency.
The color can vary from yellow-green and olive to brownish green and looks best under natural daylight.
Its clear and beautiful color of Peridot symbol the good intention of peace, happiness and tranquility.