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Pyrope
Pyrope

Sugilite
Sugilite



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Pyrope
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Sugilite

Pyrope and Sugilite Optical Properties

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Optical Properties

Luster

Greasy, Vitreous
Vitreous

Pleochroism

None
Weak

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.720-1.7561.607-1.612
1 3.25
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Optic Character

-
-

Crystal System

cubic
Hexagonal

Birefringence

-99990.003
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Pyrope and Sugilite Optic Character

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

Pyrope and Sugilite Transparency

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