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Lepidolite
Lepidolite

Riebeckite
Riebeckite



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X
Lepidolite
X
Riebeckite

Lepidolite and Riebeckite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Silky

Pleochroism

X = almost colorless; Y = Z = pink
X = blue

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.525-1.5871.680-1.698
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
monoclinic

Birefringence

0.0290-0.03800.005-0.008
0 0.296
👆🏻

Clarity

Transparent
-

Lepidolite and Riebeckite Optic Character

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

Similar to their colors, Lepidolite and Riebeckite 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.