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Scheelite and Sulphur Optical Properties


Sulphur and Scheelite Optical Properties


Optical Properties

Luster
Vitreous, Adamantine   
Not Available   

Pleochroism
Definite dichoric in yellow (yellow to orange-brown)   
Not Available   

Dispersion
0.04   
12
Not Available   

Transparency
Translucent, Transparent   
TranslucentWalter Schumann, Gemstones of the world (2001)   

Refractive Index
1.918-1.936   
1.958-2.245   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Not Available   

Birefringence
0.016   
0.291   

Clarity
Translucent   
TranslucentWalter Schumann   

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Scheelite and Sulphur Optic Character

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

Similar to their colors, Scheelite and Sulphur 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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Yellow Gemstones


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