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Benitoite
Benitoite

Jet
Jet



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Benitoite
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Jet

Benitoite and Jet Optical Properties

Jet
Jet
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Optical Properties

Luster

Vitreous
Waxy

Pleochroism

O = colorless; E = purple
-

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.757-1.8041.640-1.680
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.047-9999
0 0.296
👆🏻

Clarity

Transparent
-

Benitoite and Jet Optic Character

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

Similar to their colors, Benitoite and Jet 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.