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Euclase and Scheelite Optical Properties


Scheelite and Euclase Optical Properties


Optical Properties

Luster
Vitreous  
Vitreous, Adamantine  

Pleochroism
Weak: colorless-(greenish) yellow  
Definite dichoric in yellow (yellow to orange-brown)  

Dispersion
0.02  
99+
0.04  
36

Transparency
-  
Translucent, Transparent  

Refractive Index
1.650-1.677  
1.918-1.936  

Optic Character
-  
-  

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

Birefringence
0.019-0.025  
0.016  

Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
Translucent  

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Euclase and Scheelite Optic Character

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

Similar to their colors, Euclase 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, Euclase is while Euclase is in appearance.

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