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Jade
Jade

Sugilite
Sugilite



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Jade
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Sugilite

Jade and Sugilite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Weak

Dispersion

0.010.02
0.005 1
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Transparency

Translucent, Translucent to opaque
Translucent

Refractive Index

1.600-1.6881.607-1.612
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.020-0.0270.003
0 0.296
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Clarity

Translucent
Translucent

Jade and Sugilite Optic Character

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

Jade and Sugilite Transparency

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