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Diamond and Sinhalite Optical Properties


Sinhalite and Diamond Optical Properties


Optical Properties

Luster
Adamantine   
Not Available   

Pleochroism
None   
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli   

Dispersion
0.04   
10
0.02   
21

Transparency
Transparent, Translucent, Transparent to opaque   
Gemmological Tables (2004) More from other references   

Refractive Index
2.417-2.419   
1.665-1.712   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
Orthorhombic   

Birefringence
Not Available   
0.036-0.042   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Diamond and Sinhalite Optic Character

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

Similar to their colors, Diamond and Sinhalite 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, Diamond is Translucent, Transparent and Transparent to opaque while Diamond is Translucent, Transparent and Transparent to opaque in appearance.

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