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Benitoite
Benitoite

Tinzenite
Tinzenite



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Benitoite
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Tinzenite

Benitoite and Tinzenite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

O = colorless; E = purple
In thick sections

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.757-1.8041.690-1.705
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.047-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benitoite and Tinzenite Optic Character

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

Benitoite and Tinzenite Transparency

Similar to their colors, Benitoite and Tinzenite 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, Benitoite is Transparent while Benitoite is Transparent in appearance.