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Inderite
Inderite

Sapphire
Sapphire



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Inderite
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Sapphire

Inderite and Sapphire Optical Properties

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Optical Properties

Luster

Vitreous, Pearly, Greasy
Vitreous, Adamantine

Pleochroism

-
Strong

Dispersion

-0.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to opaque

Refractive Index

1.488-1.5051.762-1.788
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Trigonal

Birefringence

0.0170.008-0.009
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Inderite and Sapphire Optic Character

Inderite and Sapphire optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Inderite 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 Inderite 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. Inderite has Biaxial/+ character.

Inderite and Sapphire Transparency

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