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Watermelon Tourmaline and Andesine Optical Properties


Andesine and Watermelon Tourmaline Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Not Available   
colorless.   

Dispersion
0.02   
22
0.70   
2

Transparency
TransparentGemdat.org, Management Team (2012)   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.614-1.666   
1.543-1.564   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Not Available   
Triclinic   

Birefringence
0.014-0.040   
0.007-0.011   

Clarity
TransparentGemdat.org   
Transparent   

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Watermelon Tourmaline and Andesine Optic Character

Watermelon Tourmaline and Andesine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Watermelon Tourmaline and Andesine 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 Watermelon Tourmaline and Andesine 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. Andesine has Biaxial/+ character.

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Watermelon Tourmaline and Andesine Transparency

Similar to their colors, Watermelon Tourmaline and Andesine 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, Watermelon Tourmaline is Management Team (2012) and TransparentGemdat.org while Watermelon Tourmaline is Management Team (2012) and TransparentGemdat.org in appearance.

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