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Sugilite
Sugilite

Jadeite
Jadeite



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Sugilite
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Jadeite

Sugilite and Jadeite Optical Properties

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Optical Properties

Luster

Vitreous
Pearly

Pleochroism

Weak
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Translucent
Translucent

Refractive Index

1.607-1.6121.652-1.688
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
monoclinic

Birefringence

0.0030.013-0.020
0 0.296
👆🏻

Clarity

Translucent
Translucent

Sugilite and Jadeite Optic Character

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

Sugilite and Jadeite Transparency

Similar to their colors, Sugilite and Jadeite 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, Sugilite is Translucent while Sugilite is Translucent in appearance.