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Benitoite and Diamond Optical Properties


Diamond and Benitoite Optical Properties


Optical Properties

Luster
Vitreous   
Adamantine   

Pleochroism
O = colorless; E = purple   
None   

Dispersion
0.04   
11
0.04   
10

Transparency
Transparent   
Transparent, Translucent, Transparent to opaque   

Refractive Index
1.757-1.804   
2.417-2.419   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
cubic   

Birefringence
0.047   
Not Available   

Clarity
Transparent   
Transparent   

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<< Physical Properties

Benitoite and Diamond Optic Character

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

Similar to their colors, Benitoite and Diamond 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, Benitoite is Transparent while Benitoite is Transparent in appearance.

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