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Pearl and Pyrope Almandine Optical Properties


Pyrope Almandine and Pearl Optical Properties


Optical Properties

Luster
Pearly   
Not Available   

Pleochroism
AbsentWalter Schumann   
AbsentWalter Schumann   

Dispersion
None   
0.02   
16

Transparency
Translucent, Opaque   
TransparentGemdat.org, Management Team (2012)   

Refractive Index
1.52-1.66   
1.73-1.77   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Not Available   

Birefringence
0.156   
Not Available   

Clarity
Translucent   
TransparentGemdat.org   

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Pearl and Pyrope Almandine Optic Character

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

Similar to their colors, Pearl and Pyrope Almandine 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, Pearl is Opaque and Translucent while Pearl is Opaque and Translucent in appearance.

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