PERIDOT

Made of magnesium silicate and iron, this gemstone constitutes a group of minerals and only its olivine varieties are being used as gem stones. It is a transparent, olive or bottle green stone. Some of them have yellow, brown or grey shades. But only greenish colour is used in jewellery. Those with darker shade are called Olivines and those with yellowish green or bottle green are known as Chrysolites. It is ruled by Sun. It leads to quick marriage and happy married life. It protects the wearer from insect bite. This is very beneficial in case the wearer has Mercury in retrogression in his/her birth chart.