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Augite and Unakite Optical Properties


Unakite and Augite Optical Properties


Optical Properties

Luster
Vitreous, Resinous   
Not Available   

Pleochroism
Pale green   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
Gemstones of the world (2001)   

Refractive Index
1.671-1.774   
1.525   

Optic Character
Not Available   
Not Available   

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

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
Gemstones of the world (2001)   

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Augite and Unakite Optic Character

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

Similar to their colors, Augite and Unakite 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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