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Sinhalite
Sinhalite

Sapphire
Sapphire



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Sinhalite
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Sapphire

Sinhalite and Sapphire Optical Properties

Optical Properties

Luster

-
Vitreous, Adamantine

Pleochroism

Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
Strong

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to opaque

Refractive Index

1.665-1.7121.762-1.788
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Trigonal

Birefringence

0.036-0.0420.008-0.009
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Sinhalite and Sapphire Optic Character

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

Sinhalite and Sapphire Transparency

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