Botswana agate is also known as eye agate. The reason it is believed to ward off the evil eye. Botswana agate beads are beautiful stone purplish-gray which has white patterns which are mostly circle or oval in shape. Psychics believe that this gemstone has the energy to invoke spirituality in the wearer. The eye agate stimulates the crown chakra and wards off infertility and at the same time increasing sexuality and sensuality in the wearer. Botswana is mined in Botswana, Africa. There is a huge demand for this stone in the US jewelry market.