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Verdelite and Beryllonite Optical Properties


Beryllonite and Verdelite Optical Properties


Optical Properties

Luster
-  
Vitreous, Adamantine, Pearly  

Pleochroism
Strong: dark green yellow  
-  

Dispersion
0.02  
99+
0.01  
99+

Transparency
Transparent, Translucent  
-  

Refractive Index
1.614-1.666  
1.552-1.562  

Optic Character
-  
-  

Crystal System
-  
monoclinic  

Birefringence
0.014-0.040  
0.009  

Clarity
Transparent  
TransparentUlrich Henn and Claudio C. Milisenda  

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Verdelite and Beryllonite Optic Character

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

Similar to their colors, Verdelite and Beryllonite 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, Verdelite is Transparent and Translucent while Verdelite is Transparent and Translucent in appearance.

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