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Grossular
Grossular

Pearl
Pearl



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Grossular
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Pearl

Grossular and Pearl Optical Properties

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Optical Properties

Luster

Greasy, Vitreous
Pearly

Pleochroism

None
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
Translucent, Opaque

Refractive Index

1.730-1.7601.52-1.66
1 3.25
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Optic Character

-
-

Crystal System

cubic
Orthorhombic

Birefringence

0.0200.156
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Grossular and Pearl Optic Character

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

Grossular and Pearl Transparency

Similar to their colors, Grossular and Pearl 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, Grossular is while Grossular is in appearance.