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Weloganite
Weloganite

Sapphire
Sapphire



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Weloganite
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Sapphire

Weloganite and Sapphire Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Adamantine

Pleochroism

-
Strong

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to opaque

Refractive Index

1.5581.762-1.788
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Trigonal

Birefringence

0.0820.008-0.009
0 0.296
👆🏻

Clarity

-
Transparent

Weloganite and Sapphire Optic Character

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

Weloganite and Sapphire Transparency

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