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Cryolite
Cryolite

Taaffeite
Taaffeite



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Cryolite
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Taaffeite

Cryolite and Taaffeite Optical Properties

Optical Properties

Luster

Vitreous, Greasy, Pearly
Vitreous

Pleochroism

colorless.
Weak

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.338-1.3391.70-1.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.0010.055
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Cryolite and Taaffeite Optic Character

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

Cryolite and Taaffeite Transparency

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