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Idocrase
Idocrase

Taaffeite
Taaffeite



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Idocrase
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Taaffeite

Idocrase and Taaffeite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.67-1.761.70-1.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Hexagonal

Birefringence

-99990.055
0 0.296
👆🏻

Clarity

-
-

Idocrase and Taaffeite Optic Character

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

Idocrase and Taaffeite Transparency

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