Moonstone

Moonstone is a sodium potassium aluminium silicate that belongs to the feldspar group. Moonstone's name is derived from a visual effect, or sheen, caused by light diffraction within a micro-structure consisting of a regular of feldspar layers. Moonstone is rated between 6 and 6.5 on the Mohs hardness scale.  Moonstone is thought to open receptivity, intuition and wisdom, as well as help to heal emotions on the deepest level.