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Verdelite and Tourmaline Optical Properties


Tourmaline and Verdelite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Strong: dark green yellow   
typically moderate to strong   

Dispersion
0.02   
22
0.02   
22

Transparency
Transparent, Translucent   
Transparent, Translucent, Transparent to opaque   

Refractive Index
1.614-1.666   
1.614-1.666   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
0.014-0.040   
0.014-0.040   

Clarity
Transparent   
Transparent   

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Verdelite and Tourmaline Optic Character

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

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

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