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Cacoxenite
Cacoxenite

Amethyst
Amethyst



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Cacoxenite
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Amethyst

Cacoxenite and Amethyst Optical Properties

Optical Properties

Luster

Silky
Vitreous

Pleochroism

visible: O = Pale yellow E = Canary yellow to yellow orange
None

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent, Transparent to translucent

Refractive Index

1.575-1.5851.544-1.553
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Trigonal

Birefringence

-99990.009
0 0.296
👆🏻

Clarity

-
Transparent

Cacoxenite and Amethyst Optic Character

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

Cacoxenite and Amethyst Transparency

Similar to their colors, Cacoxenite and Amethyst 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, Cacoxenite is while Cacoxenite is in appearance.