Labradorite
Labradorite - Is a type of feldspar. The color ranges is white, yellow and grey. When it is white, milky or clear it is commonly called Rainbow Moonstone and when it is darker it is called Spectrolite. These stones are spectacular due to a display of spectral colors, most often flashes of blue, purple and green. This mineral protects ones aura. It represents both the sun and the moon.
Astrological - Sagittarius, Scorpio, Leo