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Sellaite
Sellaite

Sanidine
Sanidine



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Sellaite
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Sanidine

Sellaite and Sanidine Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

-
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.378-1.3901.518-1.536
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.0120.005-0.008
0 0.296
👆🏻

Clarity

Transparent
Transparent

Sellaite and Sanidine Optic Character

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

Sellaite and Sanidine Transparency

Similar to their colors, Sellaite and Sanidine 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, Sellaite is Transparent while Sellaite is Transparent in appearance.