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Poldervaartite and Sugilite Optical Properties


Sugilite and Poldervaartite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Weak: colorless light gray bluish grayAnthony et al   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Translucent   

Refractive Index
1.634-1.656   
1.607-1.612   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Hexagonal   

Birefringence
Not Available   
0.003   

Clarity
Transparent   
Translucent   

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Poldervaartite and Sugilite Optic Character

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

Similar to their colors, Poldervaartite and Sugilite 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, Poldervaartite is Transparent while Poldervaartite is Transparent in appearance.

Gems Found In Africa

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