Tourmaline is a semi-precious mineral. Its color varies from magenta to teal-blue, meadow green to bright gold. It is believed that no two stones of tourmaline were of precisely the same color. It has an unusual potential to produce an electrical charge and emit negative ions and far-infrared rays. Tourmaline helps to detoxify, encourages weight loss, increases breathing, promotes a good mood, and decreases lactic acids and free fatty acids. It is also known to promote strength and vigor in both men and women. It’s meant to be worn on the left side.