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Kyanite
Kyanite

Lepidocrocite
Lepidocrocite



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X
Kyanite
X
Lepidocrocite

Kyanite and Lepidocrocite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
-

Pleochroism

Trichroic
Strong; X = colorless to yellow; Y = orange

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.71-1.741.940
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
-

Kyanite and Lepidocrocite Optic Character

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

Kyanite and Lepidocrocite Transparency

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