Charoite and Turquoise Optical Properties
Luster
Pearly, Chatoyant
Waxy
Transparency
Translucent
Translucent, Opaque
Refractive Index
1.545-1.560
1.610-1.650
Crystal System
Triclinic
Triclinic
Birefringence
0.009
0.040
Clarity
Translucent
Translucent
Charoite and Turquoise Optic Character
Charoite and Turquoise optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Charoite and Turquoise 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 Charoite and Turquoise 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.
Charoite and Turquoise Transparency
Similar to their colors, Charoite and Turquoise transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Charoite is Translucent while Charoite is Translucent in appearance.