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Lepidolite
Lepidolite

Sapphire
Sapphire



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X
Lepidolite
X
Sapphire

Lepidolite and Sapphire Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Adamantine

Pleochroism

X = almost colorless; Y = Z = pink
Strong

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent, Transparent to opaque

Refractive Index

1.525-1.5871.762-1.788
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Trigonal

Birefringence

0.0290-0.03800.008-0.009
0 0.296
👆🏻

Clarity

Transparent
Transparent

Lepidolite and Sapphire Optic Character

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

Lepidolite and Sapphire Transparency

Similar to their colors, Lepidolite and Sapphire 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, Lepidolite is Transparent while Lepidolite is Transparent in appearance.