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Allanite
Allanite

Padparadscha
Padparadscha



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Allanite
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Padparadscha

Allanite and Padparadscha Optical Properties

Optical Properties

Luster

-
-

Pleochroism

-
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

11.757-1.780
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
-

Birefringence

0.013-0.0360.007-0.010
0 0.296
👆🏻

Clarity

-
Transparent

Allanite and Padparadscha Optic Character

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

Allanite and Padparadscha Transparency

Similar to their colors, Allanite and Padparadscha 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, Allanite is while Allanite is in appearance.