Labradorite, also known as spectrolite, is a form of feldspar with microscopic crystals inside the stone. It is the best stone to view a beautiful effect called labradorescence in which dark, metallic-like colors shimmer blue and green when light hits the surface. Metaphysically, it protects the body spiritually, stimulates positive Chi energy, prevents negativity, increases self-awareness, and brings clarity to the mind and emotions. It is also believed that it enhances psychic abilities and clairvoyant powers.  Shamans used it as protection during astral travel.