This listing is for (1) ONE Rainbow Moonstone Polished Crystal Points - By Weight - STOCK PHOTO - These polished points will vary in size and characteristics due to them being natural. These stones are highly polished and smooth. Amazing quality! You Select the weight! Available in: * under50g * 50-100g Moonstone is a type of feldspar mineral that is known for its unique optical properties. It is named after its moon-like appearance and its shimmering effect, which is caused by a phenomenon called adularescence. Adularescence is the result of light scattering and diffraction within the crystal lattice structure of the moonstone, creating a soft glowing effect.