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Pyrope and Gedrite Optical Properties


Gedrite and Pyrope Optical Properties


Optical Properties

Luster
Greasy, Vitreous  
Vitreous  

Pleochroism
None  
Weak to moderate  

Dispersion
0.02  
99+
0.02  
99+

Transparency
-  
Transparent  

Refractive Index
1.720-1.756  
1.625-1.718  

Optic Character
-  
-  

Crystal System
cubic  
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma  

Birefringence
-9999  
-9999  

Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
Transparent  

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Pyrope and Gedrite Optic Character

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

Similar to their colors, Pyrope and Gedrite 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, Pyrope is while Pyrope is in appearance.

Red Gemstones

Red Gemstones


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