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Emerald and Scheelite Optical Properties


Scheelite and Emerald Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Adamantine   

Pleochroism
Strong dichroism: yellow green Lazzarelli   
Definite dichoric in yellow (yellow to orange-brown)   

Dispersion
0.01   
26
0.04   
12

Transparency
Transparent, Translucent, Transparent to translucent   
Translucent, Transparent   

Refractive Index
1.565-1.602   
1.918-1.936   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
tetragonal   

Birefringence
0.0040-0.0070   
0.016   

Clarity
Color grading system   
Translucent   

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Emerald and Scheelite Optic Character

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

Similar to their colors, Emerald 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, Emerald is Translucent, Transparent and Transparent to translucent while Emerald is Translucent, Transparent and Transparent to translucent in appearance.

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