Iolite: known as the "Water Sapphire" as it displays a blue to violet hue in one direction and pale yellow to colourless in another. Legend has it, ancient Viking navigators used slices of Iolite as filters to help locate the sun on cloudy days.

Benefits: a "stone of vision", enhancing inner wisdom, intuition and spiritual growth.

Found: in India, Sri Lanka, Brazil, Madagascar, Myanmar, Canada and the US.