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Vanadinite and Iolite Optical Properties


Iolite and Vanadinite Optical Properties


Optical Properties

Luster
Resinous   
Vitreous   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Transparent, Translucent, Transparent to translucent   

Refractive Index
2.416   
1.52-1.56   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Orthorhombic   

Birefringence
0.066   
Not Available   

Clarity
Not Available   
Transparent to translucent   

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<< Physical Properties

Vanadinite and Iolite Optic Character

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

Similar to their colors, Vanadinite and Iolite 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, Vanadinite is Not Available while Vanadinite is Not Available in appearance.

Red Gemstones

Red Gemstones


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