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Labradorite and Sodalite Optical Properties


Sodalite and Labradorite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Greasy   

Pleochroism
From the Congo   
AbsentWalter Schumann   

Dispersion
0.01   
28
0.02   
21

Transparency
Transparent, Translucent, Transparent to translucent   
Transparent, Translucent, Opaque   

Refractive Index
1.554-1.573   
1.478-1.488   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
cubic   

Birefringence
0.008-0.010   
Not Available   

Clarity
Transparent   
Transparent   

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Labradorite and Sodalite Optic Character

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

Similar to their colors, Labradorite and Sodalite 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, Labradorite is Translucent, Transparent and Transparent to translucent while Labradorite is Translucent, Transparent and Transparent to translucent in appearance.

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