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Povondraite and Demantoid Optical Properties


Demantoid and Povondraite Optical Properties


Optical Properties

Luster
Resinous   
Adamantine   

Pleochroism
Strong: yellow-brown   
None   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Gemmological Tables (2004)   

Refractive Index
Not Available   
1.880-1.890   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
cubic   

Birefringence
Not Available   
Not Available   

Clarity
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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<< Physical Properties

Povondraite and Demantoid Optic Character

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

Similar to their colors, Povondraite and Demantoid 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, Povondraite is Translucent while Povondraite is Translucent in appearance.

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