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Bytownite
Bytownite

Axinite
Axinite



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Bytownite
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Axinite

Bytownite and Axinite Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

colorless.
Strong

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.561-1.5831.656-1.704
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Triclinic
Triclinic

Birefringence

0.010-0.0110.009-0.012
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Bytownite and Axinite Optic Character

Bytownite and Axinite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Bytownite and Axinite 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 Axinite 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. Axinite has Biaxial/+ character.

Bytownite and Axinite Transparency

Similar to their colors, Bytownite and Axinite 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.