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Ruby and Cacoxenite Optical Properties


Cacoxenite and Ruby Optical Properties


Optical Properties

Luster
Vitreous, Adamantine, Vitreous, Adamantine   
Silky   

Pleochroism
Strong: purplish-red   
visible: O = Pale yellow E = Canary yellow to yellow orange   

Dispersion
0.02   
21
Not Available   

Transparency
Transparent, Translucent, Transparent to opaque   
Not Available   

Refractive Index
1.762-1.778   
1.575-1.585   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Hexagonal   

Birefringence
0.008   
Not Available   

Clarity
Transparent   
Not Available   

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<< Physical Properties

Ruby and Cacoxenite Optic Character

Ruby and Cacoxenite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Ruby 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 Ruby 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.

Ruby and Cacoxenite Transparency

Similar to their colors, Ruby 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, Ruby is Transparent, Translucent and Transparent to opaque while Ruby is Transparent, Translucent and Transparent to opaque in appearance.