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Sanidine
Sanidine

Pyrope
Pyrope



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Sanidine
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Pyrope

Sanidine and Pyrope Optical Properties

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Optical Properties

Luster

-
Greasy, Vitreous

Pleochroism

-
None

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.518-1.5361.720-1.756
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
cubic

Birefringence

0.005-0.008-9999
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Sanidine and Pyrope Optic Character

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

Sanidine and Pyrope Transparency

Similar to their colors, Sanidine and Pyrope 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, Sanidine is Transparent while Sanidine is Transparent in appearance.