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Taaffeite
Taaffeite

Hessonite
Hessonite



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Taaffeite
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Hessonite

Taaffeite and Hessonite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Weak
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.70-1.731.742-1.748
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.055-9999
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Taaffeite and Hessonite Optic Character

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

Taaffeite and Hessonite Transparency

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