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Boleite
Boleite

Sapphire
Sapphire



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Boleite
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Sapphire

Boleite and Sapphire Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous, Adamantine

Pleochroism

-
Strong

Dispersion

0.070.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent, Transparent to opaque

Refractive Index

2.051.762-1.788
1 3.25
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Optic Character

-
-

Crystal System

Isometric
Trigonal

Birefringence

0.0100.008-0.009
0 0.296
👆🏻

Clarity

Transparent
Transparent

Boleite and Sapphire Optic Character

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

Similar to their colors, Boleite and Sapphire 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.