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Plumbogummite and Verdite Optical Properties


Verdite and Plumbogummite Optical Properties


Optical Properties

Luster
Resinous  
Vitreous, Silky  

Pleochroism
None  
Extreme  

Dispersion
0.04  
39
0.03  
99+

Transparency
-  
Translucent  

Refractive Index
1.653-1.688  
1.580  

Optic Character
-  
-  

Crystal System
Trigonal  
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c  

Birefringence
-9999  
-9999  

Clarity
-  
Translucent  

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Plumbogummite and Verdite Optic Character

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

Similar to their colors, Plumbogummite and Verdite 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, Plumbogummite is while Plumbogummite is in appearance.

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