Cat's eye quartz is thought to bring good fortune--sounds like a great reason to use it in jewelry! There are more reasons cat's eye quartz is ideal for jewelry, too, especially men's designs.

(also called Cat's Eye Glass) This glass gets its name from its similarity to Cat's Eye Quartz and the unique way the two materials refract light. The whitish "eye" or line resembles the oblong center of a cat's eye.

Various types of colored quartz, usually with a milky appearance, including carnelian, agate, cat's eye and jasper.