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Augite and Sodalite Optical Properties


Sodalite and Augite Optical Properties


Optical Properties

Luster
Vitreous, Resinous   
Greasy   

Pleochroism
Pale green   
AbsentWalter Schumann   

Dispersion
Not Available   
0.02   
21

Transparency
Transparent, Translucent   
Transparent, Translucent, Opaque   

Refractive Index
1.671-1.774   
1.478-1.488   

Optic Character
Not Available   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c   
cubic   

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
Transparent   

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Augite and Sodalite Optic Character

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

Similar to their colors, Augite 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, Augite is Translucent and Transparent while Augite is Translucent and Transparent in appearance.

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