Moonstone is a gem that derives from the feldspar group. It is a variety of orthoclase, and most famous for its adularescence effect. Alternating feldspar layers build up within the stone during formation, which allows light to glide across the layers of the gem, producing this signature effect. It is usually of a blue, silver, or white color. Sri Lankan moonstone is a luminous delight! Possessing an enigmatic sheen that shifts and shimmers across the stone's surface, few gemstones match the romance and mystique of moonstone. Moonstone helps to reveal and bring out the inner feminine energy in those who wear it. Said to be a support for meditation which can often help reveal the missing pieces to the puzzles in life. Moonstone qualities: Feminine divine (goddess energy.) Helps connect with the healing qualities in nature and feminine qualities in men and the feminine power for women. This is an orthoclase moonstone (true moonstone.) What is commonly known as "rainbow moonstone" or "blue rainbow moonstone" is actually (mineralogically speaking) a form of white labradorite! If you are looking for a true orthoclase moonstone... this is your piece!