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Kyanite and Labradorite Optical Properties


Labradorite and Kyanite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Vitreous, Pearly   

Pleochroism
Trichroic   
From the Congo   

Dispersion
Not Available   
0.01   
28

Transparency
Not Available   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.71-1.74   
1.554-1.573   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Triclinic   

Birefringence
Not Available   
0.008-0.010   

Clarity
Color grading system   
Transparent   

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Kyanite and Labradorite Optic Character

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

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Kyanite and Labradorite Transparency

Similar to their colors, Kyanite and Labradorite 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, Kyanite is Not Available while Kyanite is Not Available in appearance.

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