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Gedrite and Sanidine Optical Properties


Sanidine and Gedrite Optical Properties


Optical Properties

Luster
Fibrous, Vitreous   
Not Available   

Pleochroism
Weak to moderate   
WeakMichael O’Donoghue   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Transparent   

Refractive Index
1.625-1.718   
1.518-1.536   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma   
Not Available   

Birefringence
Not Available   
0.005-0.008   

Clarity
Transparent   
Transparent   

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Gedrite and Sanidine Optic Character

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

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Gedrite and Sanidine Transparency

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

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Brown Gemstones


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