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Scheelite and Chalcedony Optical Properties


Chalcedony and Scheelite Optical Properties


Optical Properties

Luster
Vitreous, Adamantine   
Vitreous   

Pleochroism
Definite dichoric in yellow (yellow to orange-brown)   
AbsentWalter Schumann   

Dispersion
0.04   
12
None   

Transparency
Translucent, Transparent   
Translucent, Translucent to opaque   

Refractive Index
1.918-1.936   
1.530-1.543   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Trigonal   

Birefringence
0.016   
0.003-0.009   

Clarity
Translucent   
Translucent   

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Scheelite and Chalcedony Optic Character

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

Similar to their colors, Scheelite and Chalcedony 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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