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Indicolite Blue Tourmaline and Esperite Optical Properties


Esperite and Indicolite Blue Tourmaline Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Strong: dark blue light blueWalter Schumann   
colorless.   

Dispersion
0.02   
22
Not Available   

Transparency
Transparent, Translucent   
OpaqueAnthony et al, Opaque, Transparent   

Refractive Index
1.614-1.666   
1.760-1.774   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
monoclinic   

Birefringence
0.014-0.040   
0.012   

Clarity
Transparent   
OpaqueAnthony et al   

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<< Physical Properties

Indicolite Blue Tourmaline and Esperite Optic Character

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

Similar to their colors, Indicolite Blue Tourmaline and Esperite 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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