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Sanidine
Sanidine

Gedrite
Gedrite



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Sanidine
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Gedrite

Sanidine and Gedrite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak to moderate

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.518-1.5361.625-1.718
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.005-0.008-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Sanidine and Gedrite Optic Character

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

Sanidine and Gedrite Transparency

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