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Plumbogummite and Variscite Optical Properties


Variscite and Plumbogummite Optical Properties


Optical Properties

Luster
Resinous  
Vitreous, Waxy  

Pleochroism
None  
-  

Dispersion
0.04  
39
0.01  
99+

Transparency
-  
Translucent, Opaque . May be translucent when backlit on the edges.  

Refractive Index
1.653-1.688  
1.560-1.594  

Optic Character
-  
-  

Crystal System
Trigonal  
Orthorhombic  

Birefringence
-9999  
0.031  

Clarity
-  
Translucent  

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Plumbogummite and Variscite Optic Character

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

Similar to their colors, Plumbogummite and Variscite 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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