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Sugilite
Sugilite

Elaeolite
Elaeolite



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Sugilite
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Elaeolite

Sugilite and Elaeolite Optical Properties

Optical Properties

Luster

Vitreous
Greasy

Pleochroism

Weak
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.607-1.612-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.003-9999
0 0.296
👆🏻

Clarity

Translucent
-

Sugilite and Elaeolite Optic Character

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

Similar to their colors, Sugilite and Elaeolite 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.