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Ruby Zoisite
Ruby Zoisite

Alunite
Alunite



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Ruby Zoisite
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Alunite

Ruby Zoisite and Alunite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.572
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.020
0 0.296
👆🏻

Clarity

-
-

Ruby Zoisite and Alunite Optic Character

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

Ruby Zoisite and Alunite Transparency

Similar to their colors, Ruby Zoisite and Alunite 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, Ruby Zoisite is while Ruby Zoisite is in appearance.