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Hessonite
Hessonite

Pearl
Pearl



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Hessonite
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Pearl

Hessonite and Pearl Optical Properties

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Optical Properties

Luster

-
Pearly

Pleochroism

-
-

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

-
Translucent, Opaque

Refractive Index

1.742-1.7481.52-1.66
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.156
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Hessonite and Pearl Optic Character

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

Hessonite and Pearl Transparency

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