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Unakite and Chrysoprase Optical Properties


Chrysoprase and Unakite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Vitreous, Waxy   

Pleochroism
Not Available   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Gemstones of the world (2001)   
Translucent, Translucent, Opaque, Translucent to nearly opaque   

Refractive Index
1.525   
1.530-1.543   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Trigonal   

Birefringence
Not Available   
0.004   

Clarity
Gemstones of the world (2001)   
Translucent   

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Unakite and Chrysoprase Optic Character

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

Similar to their colors, Unakite and Chrysoprase 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, Unakite is Gemstones of the world (2001) while Unakite is Gemstones of the world (2001) in appearance.

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