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Feldspar
Feldspar

Taaffeite
Taaffeite



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Feldspar
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Taaffeite

Feldspar and Taaffeite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

None
Weak

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.518-1.5701.70-1.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic or monoclinic
Hexagonal

Birefringence

0.008-0.0100.055
0 0.296
👆🏻

Clarity

Transparent
-

Feldspar and Taaffeite Optic Character

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

Feldspar and Taaffeite Transparency

Similar to their colors, Feldspar 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, Feldspar is Transparent and Translucent while Feldspar is Transparent and Translucent in appearance.