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Taaffeite
Taaffeite

Precious Opal
Precious Opal



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Taaffeite
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Precious Opal

Taaffeite and Precious Opal Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Weak
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.70-1.731.370-1.470
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.055-9999
0 0.296
👆🏻

Clarity

-
Transparent

Taaffeite and Precious Opal Optic Character

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

Similar to their colors, Taaffeite and Precious Opal 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.