Amazonite

Amazonite is a veined blue-green, almost turquoise, stone.

Amazonite helps protect against electromagnetic pollution, rife in the modern age of microwaves and mobile phones. It soothes emotional trauma, and calms the brain and nervous system. As a healing stone, it helps rectify conditions brought about by calcium deficiency, and relieves muscle spasms. (Crystal properties taken from The Crystal Bible, by Judy Hall)