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Sulphur and Scheelite Optical Properties


Scheelite and Sulphur Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Adamantine   

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

Dispersion
Not Available   
0.04   
12

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

Refractive Index
1.958-2.245   
1.918-1.936   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
tetragonal   

Birefringence
0.291   
0.016   

Clarity
TranslucentWalter Schumann   
Translucent   

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Sulphur and Scheelite Optic Character

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

Similar to their colors, Sulphur 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, Sulphur is Gemstones of the world (2001) and TranslucentWalter Schumann while Sulphur is Gemstones of the world (2001) and TranslucentWalter Schumann in appearance.

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Yellow Gemstones


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