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Taaffeite
Taaffeite

Phenakite
Phenakite



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Taaffeite
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Phenakite

Taaffeite and Phenakite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Weak
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.70-1.731.650-1.695
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Trigonal

Birefringence

0.0550.016
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Taaffeite and Phenakite Optic Character

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

Similar to their colors, Taaffeite and Phenakite 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.