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Tremolite
Tremolite

Benitoite
Benitoite



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Tremolite
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Benitoite

Tremolite and Benitoite Optical Properties

Optical Properties

Luster

Vitreous, Silky
Vitreous

Pleochroism

-
O = colorless; E = purple

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.599-1.6371.757-1.804
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.023-0.0280.047
0 0.296
👆🏻

Clarity

Transparent
Transparent

Tremolite and Benitoite Optic Character

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

Tremolite and Benitoite Transparency

Similar to their colors, Tremolite 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, Tremolite is Transparent while Tremolite is Transparent in appearance.