Charoite and Tavorite Optical Properties
Luster
Pearly, Chatoyant
Vitreous
Pleochroism
-
Yellow-green colorlessAnthony et al
Transparency
Translucent
Transparent
Refractive Index
1.545-1.560
1
Crystal System
Triclinic
-
Birefringence
0.009
-9999
Clarity
Translucent
Transparent
Charoite and Tavorite Optic Character
Charoite and Tavorite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Charoite and Tavorite 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 Tavorite 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 Tavorite Transparency
Similar to their colors, Charoite and Tavorite 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.