Tiger's eye is a very protective stone. It has powerful and dynamic energy with a watchful quality to it. The specific colors of a tiger's eye stone, from golden yellow to deep red, express strengthening and grounding energies in different degrees.
Tigers eye displays a chatoyancy (cat's-eye) when a polished stone is moved back and forth in incident light. It is a quartz gemstone, usually amber to brown in color, that forms when fibers of the mineral crocidolite are replaced by silica.