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Taaffeite
Taaffeite

Cinnabar
Cinnabar



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Taaffeite
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Cinnabar

Taaffeite and Cinnabar Optical Properties

Optical Properties

Luster

Vitreous
Adamantine

Pleochroism

Weak
-

Dispersion

0.020.06
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.70-1.732.905-3.25
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Trigonal

Birefringence

0.055-9999
0 0.296
👆🏻

Clarity

-
Translucent

Taaffeite and Cinnabar Optic Character

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

Similar to their colors, Taaffeite and Cinnabar 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.