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Mother of Pearl and Sapphire Optical Properties


Sapphire and Mother of Pearl Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Adamantine, Vitreous, Adamantine   

Pleochroism
Not Available   
Strong   

Dispersion
Not Available   
0.02   
21

Transparency
Gemmological Tables (2004)   
Transparent, Translucent, Transparent to opaque   

Refractive Index
1.53-1.69   
1.762-1.788   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
0.16   
0.008-0.009   

Clarity
Gemmological Tables (2004)   
Transparent   

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Mother of Pearl and Sapphire Optic Character

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

Similar to their colors, Mother of Pearl and Sapphire 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, Mother of Pearl is Gemmological Tables (2004) while Mother of Pearl is Gemmological Tables (2004) in appearance.

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