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Lepidolite
Lepidolite

Rosasite
Rosasite



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X
Lepidolite
X
Rosasite

Lepidolite and Rosasite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Silky, Vitreous

Pleochroism

X = almost colorless; Y = Z = pink
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.525-1.5871.672-1.688
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
monoclinic

Birefringence

0.0290-0.03800.139-0.143
0 0.296
👆🏻

Clarity

Transparent
-

Lepidolite and Rosasite Optic Character

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

Similar to their colors, Lepidolite and Rosasite 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.