Agate, SiO2 with more varieties , it is not a mineral exactly as it is a mix of minerals . Agate is a variety of chalcedony family.This stone has got bands of different colours, it is a volvanic rock . In ancient times agate was worshiped as it was said to attract knowledge. In India it was believed it would help with ocular illnesses and it balanced the circulatory system .In Egypt , agate was used to help with spider bites and scorpion stings. In Aleppo , agate provided high spirituality . In Islam culture ,agate protects from obstacles and it helps to have a long life and prosperity . Agate is reputed to calm and balance the nervous system as well as absorbing heat,helping regulate temperature. Agate is also used to combat against sterility and hypocrisy . Agate is linked with the thoat chakra, thus allowing us to use the correct tone of voice when talking,allowing us to express ourselves more eloquently. Orange agate is said to aid concentration and develop intellectual abilities.