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Taaffeite
Taaffeite

Common Opal
Common Opal



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Taaffeite
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Common Opal

Taaffeite and Common Opal Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Weak
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.70-1.731.37-1.52
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.055-9999
0 0.296
👆🏻

Clarity

-
Translucent

Taaffeite and Common Opal Optic Character

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

Similar to their colors, Taaffeite and Common 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.