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Boleite
Boleite

Sugilite
Sugilite



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Boleite
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Sugilite

Boleite and Sugilite Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
Weak

Dispersion

0.070.02
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

2.051.607-1.612
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Hexagonal

Birefringence

0.0100.003
0 0.296
👆🏻

Clarity

Transparent
Translucent

Boleite and Sugilite Optic Character

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

Boleite and Sugilite Transparency

Similar to their colors, Boleite 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, Boleite is Transparent while Boleite is Transparent in appearance.