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Pyrope
Pyrope

Sard
Sard



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Pyrope
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Sard

Pyrope and Sard Optical Properties

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Optical Properties

Luster

Greasy, Vitreous
Waxy

Pleochroism

None
-

Dispersion

0.020.01
0.005 1
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Transparency

-
Translucent

Refractive Index

1.720-1.7561.535-1.539
1 3.25
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Optic Character

-
-

Crystal System

cubic
-

Birefringence

-99990.008-0.010
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Pyrope and Sard Optic Character

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

Similar to their colors, Pyrope and Sard 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.