Cat's Eye 4mm Round

Cat’s Eye is a quartz stone that appears in a range of colors including white, gray, green, yellow and brown. The fibrous asbestos inclusions in the stone give it the flash that inspired its name. It is a form of Chrysoberyl, the third-hardest common natural gemstone, with a Mohs Hardness of 8.5, between Topaz (8) and Corundum (9).