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Rubellite Tourmaline and Tourmaline Optical Properties


Tourmaline and Rubellite Tourmaline Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Not Available   
typically moderate to strong   

Dispersion
Not Available   
0.02   
22

Transparency
Opaque   
Transparent, Translucent, Transparent to opaque   

Refractive Index
Not Available   
1.614-1.666   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric   
Trigonal   

Birefringence
Not Available   
0.014-0.040   

Clarity
Opaque   
Transparent   

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<< Physical Properties

Rubellite Tourmaline and Tourmaline Optic Character

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

Similar to their colors, Rubellite Tourmaline 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, Rubellite Tourmaline is Opaque while Rubellite Tourmaline is Opaque in appearance.

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