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Indicolite Blue Tourmaline and Corundum Optical Properties


Corundum and Indicolite Blue Tourmaline Optical Properties


Optical Properties

Luster
Not Available   
Adamantine, Vitreous   

Pleochroism
Strong: dark blue light blueWalter Schumann   
None   

Dispersion
0.02   
22
0.02   
21

Transparency
Transparent, Translucent   
Transparent, Translucent   

Refractive Index
1.614-1.666   
1.758-1.780   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
0.014-0.040   
0.007-0.010   

Clarity
Transparent   
Gemmological Tables (2004) More from other references   

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Indicolite Blue Tourmaline and Corundum Optic Character

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

Similar to their colors, Indicolite Blue Tourmaline and Corundum 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, Indicolite Blue Tourmaline is Translucent and Transparent while Indicolite Blue Tourmaline is Translucent and Transparent in appearance.

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