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Ceylonite
Ceylonite

Alunite
Alunite



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Ceylonite
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Alunite

Ceylonite and Alunite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Absent
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.770-1.7801.572
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Trigonal

Birefringence

-99990.020
0 0.296
👆🏻

Clarity

Transparent
-

Ceylonite and Alunite Optic Character

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

Ceylonite and Alunite Transparency

Similar to their colors, Ceylonite 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, Ceylonite is Transparent and Translucent while Ceylonite is Transparent and Translucent in appearance.