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Baddeleyite and Beryl Optical Properties


Beryl and Baddeleyite Optical Properties


Optical Properties

Luster
Adamantine  
Vitreous, Resinous  

Pleochroism
DistinctArthur Thomas  
Weak to distinct  

Dispersion
0.04  
36
0.01  
99+

Transparency
Transparent  
Transparent, Transparent to opaque  

Refractive Index
2.13-2.20  
1.560-1.604  

Optic Character
-  
-  

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/c  
Hexagonal  

Birefringence
0.07  
0.0040-0.0070  

Clarity
Transparent  
Transparent  

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Baddeleyite and Beryl Optic Character

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

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

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