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Hexagonite and Beryllonite Optical Properties


Beryllonite and Hexagonite Optical Properties


Optical Properties

Luster
Vitreous  
Vitreous, Adamantine, Pearly  

Pleochroism
bluish–red  
-  

Dispersion
-  
0.01  
99+

Transparency
Transparent  
-  

Refractive Index
1.599-1.637  
1.552-1.562  

Optic Character
-  
-  

Crystal System
-  
monoclinic  

Birefringence
0.019-0.028  
0.009  

Clarity
Transparent  
TransparentUlrich Henn and Claudio C. Milisenda  

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Hexagonite and Beryllonite Optic Character

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

Similar to their colors, Hexagonite 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, Hexagonite is Transparent while Hexagonite is Transparent in appearance.

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Red Gemstones


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