Charoite and Cacoxenite Optical Properties
Luster
Pearly, Fibrous, Chatoyant
Silky
Pleochroism
NilArthur Thomas
visible: O = Pale yellow E = Canary yellow to yellow orange
Dispersion
Not Available
Not Available
Transparency
Translucent
Not Available
Refractive Index
1.545-1.560
1.575-1.585
Optic Character
Not Available
Not Available
Crystal System
Triclinic
Hexagonal
Birefringence
0.009
Not Available
Clarity
Translucent
Not Available
Charoite and Cacoxenite Optic Character
Charoite and Cacoxenite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Charoite and Cacoxenite 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 Cacoxenite 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 Cacoxenite Transparency
Similar to their colors, Charoite and Cacoxenite 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.