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Taaffeite
Taaffeite

Cacoxenite
Cacoxenite



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Taaffeite
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Cacoxenite

Taaffeite and Cacoxenite Optical Properties

Optical Properties

Luster

Vitreous
Silky

Pleochroism

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

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.70-1.731.575-1.585
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Hexagonal

Birefringence

0.055-9999
0 0.296
👆🏻

Clarity

-
-

Taaffeite and Cacoxenite Optic Character

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

Taaffeite and Cacoxenite Transparency

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