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Scheelite and Plumbogummite Optical Properties


Plumbogummite and Scheelite Optical Properties


Optical Properties

Luster
Vitreous, Adamantine  
Resinous  

Pleochroism
Definite dichoric in yellow (yellow to orange-brown)  
None  

Dispersion
0.04  
36
0.04  
39

Transparency
Translucent, Transparent  
-  

Refractive Index
1.918-1.936  
1.653-1.688  

Optic Character
-  
-  

Crystal System
tetragonal  
Trigonal  

Birefringence
0.016  
-9999  

Clarity
Translucent  
-  

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Scheelite and Plumbogummite Optic Character

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

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

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