Rainbow Calsilica is a product of man made sedimentary rock. It is a built up of calcium carbonate (Calcite) and man made coloring pigment. Rainbow Calsilica does not have a crystalline stucture. However, it receives it's metaphysical properties from it's colors, rainbow.
אבן מעשה ידי אדם בצבעי הקשת המשמשת בתעשיית התכשיטים.