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Galena and Demantoid Optical Properties


Demantoid and Galena Optical Properties


Optical Properties

Luster
Not Available   
Adamantine   

Pleochroism
Not Available   
None   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemmological Tables (2004)   

Refractive Index
Not Available   
1.880-1.890   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
cubic   

Birefringence
Not Available   
Not Available   

Clarity
Not Available   
TransparentUlrich Henn and Claudio C. Milisenda   

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<< Physical Properties

Galena and Demantoid Optic Character

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

Similar to their colors, Galena 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, Galena is Not Available while Galena is Not Available in appearance.

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Grey Gemstones


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