Almost everyone can wear Tiger's Eye crystal. Issues will only arise if you fall under a zodiac sign with a planet that clashes with those which rule this gemstone, the Sun and Mars. The Sun's enemies are Saturn and Venus and Mars' is Mercury.
- Group: Quartz
- Refractive index: 1.544-1.553
- Birefringence: 0.009
- Specific gravity: 2.65/ +0.03, -0.02
- Crystal system: Trigonal
- Hardness: 7
- Inclusions: Chatoyance
- Origin: Australia, Burma, India, Namibia, South Africa, the United States, Brazil, Canada, China, Korea and Spain