Cat s Eye and Tortoiseshell Optic Character
Cat s Eye and Tortoiseshell optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Cat s Eye and Tortoiseshell Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Cat s Eye and Tortoiseshell optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.