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Sphalerite and Sard Optical Properties


Sard and Sphalerite Optical Properties


Optical Properties

Luster
Adamantine   
Waxy   

Pleochroism
AbsentWalter Schumann   
AbsentWalter Schumann   

Dispersion
0.16   
4
None   

Transparency
Transparent, Translucent   
Translucent   

Refractive Index
2.368-2.371   
1.535-1.539   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric   
Not Available   

Birefringence
Not Available   
0.008-0.010   

Clarity
Transparent   
Translucent   

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Sphalerite and Sard Optic Character

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

Similar to their colors, Sphalerite and Sard 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, Sphalerite is Translucent and Transparent while Sphalerite is Translucent and Transparent in appearance.

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