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Abalone
Abalone

Sapphire
Sapphire



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Abalone
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Sapphire

Abalone and Sapphire Optical Properties

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Optical Properties

Luster

-
Vitreous, Adamantine

Pleochroism

-
Strong

Dispersion

0.540.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to opaque

Refractive Index

-99991.762-1.788
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.008-0.009
0 0.296
👆🏻

Clarity

Translucent
Transparent

Abalone and Sapphire Optic Character

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

Abalone and Sapphire Transparency

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