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Augelite and Beryl Optical Properties


Beryl and Augelite Optical Properties


Optical Properties

Luster
Pearly  
Vitreous, Resinous  

Pleochroism
-  
Weak to distinct  

Dispersion
0.02  
99+
0.01  
99+

Transparency
-  
Transparent, Transparent to opaque  

Refractive Index
1.570-1.591  
1.560-1.604  

Optic Character
-  
-  

Crystal System
-  
Hexagonal  

Birefringence
0.020-0.021  
0.0040-0.0070  

Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
Transparent  

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Augelite and Beryl Optic Character

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

Similar to their colors, Augelite and Beryl 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, Augelite is while Augelite is in appearance.

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