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Cacoxenite
Cacoxenite

Fire Opal
Fire Opal



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Cacoxenite
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Fire Opal

Cacoxenite and Fire Opal Optical Properties

Optical Properties

Luster

Silky
-

Pleochroism

visible: O = Pale yellow E = Canary yellow to yellow orange
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.575-1.5851.370-1.470
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Cacoxenite and Fire Opal Optic Character

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

Similar to their colors, Cacoxenite and Fire Opal 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.