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Bytownite
Bytownite

Benitoite
Benitoite



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Bytownite
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Benitoite

Bytownite and Benitoite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

colorless.
O = colorless; E = purple

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.561-1.5831.757-1.804
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Hexagonal

Birefringence

0.010-0.0110.047
0 0.296
👆🏻

Clarity

Transparent
Transparent

Bytownite and Benitoite Optic Character

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

Bytownite and Benitoite Transparency

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