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Jadeite
Jadeite

Sugilite
Sugilite



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Jadeite
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Sugilite

Jadeite and Sugilite Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Pearly
-
0.01
Translucent
1.652-1.688
-
monoclinic
0.013-0.020
Translucent
 
Vitreous
Weak
0.02
Translucent
1.607-1.612
-
Hexagonal
0.003
Translucent

Jadeite and Sugilite Optic Character

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

Jadeite and Sugilite Transparency

Similar to their colors, Jadeite 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, Jadeite is while Jadeite is in appearance.