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Prasiolite and Agate Optical Properties


Agate and Prasiolite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Very weak: light green pale greenWalter Schumann   
Absent   

Dispersion
0.01   
27
None   

Transparency
Transparent, Translucent   
Translucent   

Refractive Index
1.544-1.553   
1.530-1.543   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Trigonal   

Birefringence
0.009   
0.004   

Clarity
Transparent   
Translucent   

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Prasiolite and Agate Optic Character

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

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

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