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Star Sapphire and Peridot Optical Properties


Peridot and Star Sapphire Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Greasy   

Pleochroism
Not Available   
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli   

Dispersion
Not Available   
0.02   
18

Transparency
Transparent, Translucent   
Transparent   

Refractive Index
1.758-1.780   
1.64-1.69   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Orthorhombic   

Birefringence
0.007-0.010   
0.036   

Clarity
Transparent   
Transparent   

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Star Sapphire and Peridot Optic Character

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

Similar to their colors, Star Sapphire and Peridot 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, Star Sapphire is Translucent and Transparent while Star Sapphire is Translucent and Transparent in appearance.

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