Welcome To sbjewelrs   Natutal Moonstone Gemstone 925 Sterling Silver Handmade Pandant For Gift D-900 Moonstone Healing Properties Moonstone is a sodium calcium aluminium silicate mineral. Its registered name is Oligoclase Feldspar. Moonstone shows a glowing shimmer similar to labradorescence, but lacking in colour. The display is produced from lamellar inter-growths inside the crystal. These inter-growths result from compatible chemistries at high temperatures becoming incompatible at lower temperatures and thus a separating and layering of these two phases. The resulting shimmer effect is caused by a ray of light entering a layer and being refracted back and forth by deeper layers before it exits the crystal. This refracted ray has a different character than when it went in and produces