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Taaffeite
Taaffeite

Benitoite
Benitoite



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Taaffeite
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Benitoite

Taaffeite and Benitoite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak
O = colorless; E = purple

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.70-1.731.757-1.804
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Hexagonal

Birefringence

0.0550.047
0 0.296
👆🏻

Clarity

-
Transparent

Taaffeite and Benitoite Optic Character

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

Similar to their colors, Taaffeite and Benitoite 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.