Adularia is a variety of orthoclase feldspar found as colorless to white prismatic crystals in cavities in metamorphic rocks. The effect which gives moonstone its name is the result of the gem’s microstructure. Moonstone consists of a number of feldspar layers. This layering causes the light to diffract, resulting in the appearance of a moonbeam floating across the gem as you turn it. This effect is known as adularescence.
Price is per piece each measures 1" approx