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Seraphinite
Seraphinite

Sugilite
Sugilite



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Seraphinite
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Sugilite

Seraphinite and Sugilite Optical Properties

Optical Properties

Luster

Pearly, Greasy
Vitreous

Pleochroism

-
Weak

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.571-1.5971.607-1.612
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

-
Hexagonal

Birefringence

-99990.003
0 0.296
👆🏻

Clarity

Transparent
Translucent

Seraphinite and Sugilite Optic Character

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

Seraphinite and Sugilite Transparency

Similar to their colors, Seraphinite and Sugilite 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, Seraphinite is Transparent while Seraphinite is Transparent in appearance.