Moonstone's radiant, translucent appearance is similar to that of the glow of the moon, hence the name Moonstone. Minerologists refer to this semi-precious stone as Adularia, as it was first discovered in the Adula Mountains in Switzerland. The glowing flashes of light that are seen in these multi-color moonstone beads are known as “adularescence”. This gemstone is usually whitish-blue (Rainbow Moonstone), but it can also be colorless, yellow, peach, gray, or even reddish (Multi Moonstone).
Moonstone is a semiprecious member of the potassium feldspar family that exhibits a glowing bluish, silvery, or pearly white shimmer. Moonstone is sensitive to pressure and is vitrous in luster.