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Lepidolite
Lepidolite

Sylvite
Sylvite



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X
Lepidolite
X
Sylvite

Lepidolite and Sylvite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

X = almost colorless; Y = Z = pink
Visible in colored crystals

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.525-1.5871.4903
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Isometric

Birefringence

0.0290-0.0380-9999
0 0.296
👆🏻

Clarity

Transparent
-

Lepidolite and Sylvite Optic Character

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

Similar to their colors, Lepidolite and Sylvite 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.