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Marialite and Beryllonite Optical Properties


Beryllonite and Marialite Optical Properties


Optical Properties

Luster
Vitreous, Pearly, Resinous  
Vitreous, Adamantine, Pearly  

Pleochroism
-  
-  

Dispersion
0.02  
99+
0.01  
99+

Transparency
Transparent, Translucent  
-  

Refractive Index
1.540-1.550  
1.552-1.562  

Optic Character
-  
-  

Crystal System
tetragonal  
monoclinic  

Birefringence
0.004-0.008  
0.009  

Clarity
Transparent  
TransparentUlrich Henn and Claudio C. Milisenda  

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Marialite and Beryllonite Optic Character

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

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

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