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Pleonast
Pleonast

Taaffeite
Taaffeite



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Pleonast
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Taaffeite

Pleonast and Taaffeite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.70-1.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

-99990.055
0 0.296
👆🏻

Clarity

-
-

Pleonast and Taaffeite Optic Character

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

Pleonast and Taaffeite Transparency

Similar to their colors, Pleonast 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, Pleonast is while Pleonast is in appearance.