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Ceylonite and Powellite Optical Properties


Powellite and Ceylonite Optical Properties


Optical Properties

Luster
Vitreous  
Greasy, Subadamantine  

Pleochroism
Absent  
In deeply colored specimens: blue greenAnthony et al  

Dispersion
0.02  
99+
0.03  
99+

Transparency
Transparent, Translucent  
Transparent  

Refractive Index
1.770-1.780  
1.974-1.984  

Optic Character
-  
-  

Crystal System
Isometric  
-  

Birefringence
-9999  
-9999  

Clarity
Transparent  
Transparent  

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<< Physical Properties

Ceylonite and Powellite Optic Character

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

Similar to their colors, Ceylonite and Powellite 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, Ceylonite is Transparent and Translucent while Ceylonite is Transparent and Translucent in appearance.

Blue Gemstones

Blue Gemstones


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