Mooie Chrysoberyl Kattenoog Cabochon Weight: 0.99 CT. Size: 6.5x5 mm Shape: Oval Cabochon Color: Fine Milk and Honey Color Clarity: Transparent Luster: Nice Sharp Cats Eye Origin: Africa Hardness: 8.5 Specific Gravity: 3.7+ Refractive Index: 1.75 Chemical Composition: BeAl2O4, Beryllium Aluminum Oxide Crystal Structure: Orthorhombic Treatment: None