The White Labradorite, better known as Rainbow Moonstone is a member of feldspar gemstones which normally forms on igneous rocks as a result of the cooling and solidification of the molten magma under the earth. Valued for its vitreous luster, the Rainbow Moonstone belongs to the lattice silicates mineral class which crystallizes in a triclinic system. It is chemically composed of 90 percent sodium and 10 to 30 percent calcium and aluminum silicate. The mineral is normally found in abundance in India and Australia.
It is available in different grades differentiated by the tint of their colors. The best variant which is regarded by some people as grade A is clear, iridescent and white in color and opaque with a good optical reflectance effect. The lower grade does not have good chatoyancy. It has blurred white color and can also be gloomy in appearance. Its internal structure responsible for the color effect displayed by the stone is a laminate of feldspar. Some variants display a bluish shimmer effect produced by the potassium it contains. The stone can also be somewhat translucent. White Labradorite is poor in toughness with a Mohs hardness range of 6 to 6.5 and a specific gravity of 2.65-2.75. It has a transparent to translucent appearance with a positive optical sign and biaxial optic character. The gemstone manifests no pleochroism but it has a refractive index of 1.559-1.568 and double refraction of 0.009.0.009.
Associated with the moon, the Rainbow Moonstone is believed by many to be very helpful to women possessors by improving their insights and intuition. Above all, it is believed to improve the chances of pregnancy in a woman that bears it by enhancing the function of the reproductive system. It regulates their menstrual cycles and all the hormones connected to reproduction in a woman's body. The stone assists the bearers to fuse all the various cycles experienced in life together. It is a stone that can, in a unique manner, stabilize the emotional body of people who possess it. People have kept this stone in order to relieve stress and deal with aggressive tendencies in the body. More still, the Rainbow Moonstone gives a boost to the digestive system and enhances the absorption of nutrients especially minerals and vitamins in the body. It can also be kept to enhance the function of the liver. Esteemed as the stone of new beginning, White Labradorite is recommended to people with sleeping disorder. Similarly, people use White Labradorite to deal with degeneration issues and to detoxify their internal organs.
The stone is associated with abundance of harvest. In the past, some folks bound it on fruitless trees in order to make them bear fruits. It was also kept for lucid dreams. Some local folks normally wore this stone during full moon to forecast their future or to protect themselves during sea travels. This stone is usually placed close to one’s heart to gain rewarding emotional experiences. It can also be placed on the forehead for better thinking ability.