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Pyrope and Danburite Optical Properties


Danburite and Pyrope Optical Properties


Optical Properties

Luster
Greasy, Vitreous  
Vitreous, Greasy  

Pleochroism
None  
Weak: pale yellow yellow  

Dispersion
0.02  
99+
0.02  
99+

Transparency
-  
-  

Refractive Index
1.720-1.756  
1.627-1.639  

Optic Character
-  
Biaxial/+  

Crystal System
cubic  
Orthorhombic  

Birefringence
-9999  
0.006  

Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
TransparentUlrich Henn and Claudio C. Milisenda  

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Pyrope and Danburite Optic Character

Pyrope and Danburite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Pyrope and Danburite 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 Danburite 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. Danburite has Biaxial/+ character.

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Pyrope and Danburite Transparency

Similar to their colors, Pyrope and Danburite 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.

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