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Taaffeite
Taaffeite

Cryolite
Cryolite



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Taaffeite
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Cryolite

Taaffeite and Cryolite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Greasy, Pearly

Pleochroism

Weak
colorless.

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.70-1.731.338-1.339
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
monoclinic

Birefringence

0.0550.001
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Taaffeite and Cryolite Optic Character

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

Similar to their colors, Taaffeite and Cryolite 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.