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Friedelite
Friedelite

Kyanite
Kyanite



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Friedelite
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Kyanite

Friedelite and Kyanite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
Trichroic

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.627-1.6631.71-1.74
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Triclinic

Birefringence

0.032-0.035-9999
0 0.296
👆🏻

Clarity

Translucent
-

Friedelite and Kyanite Optic Character

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

Friedelite and Kyanite Transparency

Similar to their colors, Friedelite and Kyanite 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, Friedelite is Translucent while Friedelite is Translucent in appearance.