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Mottramite and Scheelite Optical Properties


Scheelite and Mottramite Optical Properties


Optical Properties

Luster
Greasy  
Vitreous, Adamantine  

Pleochroism
Visible X=Y= canary yellow to greenish yellow  
Definite dichoric in yellow (yellow to orange-brown)  

Dispersion
0.04  
36
0.04  
36

Transparency
-  
Translucent, Transparent  

Refractive Index
2.170  
1.918-1.936  

Optic Character
-  
-  

Crystal System
Orthorhombic  
tetragonal  

Birefringence
0.150  
0.016  

Clarity
-  
Translucent  

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Mottramite and Scheelite Optic Character

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

Similar to their colors, Mottramite and Scheelite 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, Mottramite is while Mottramite is in appearance.

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