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Emerald
Emerald

Williamsite
Williamsite



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Emerald
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Williamsite

Emerald and Williamsite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Strong dichroism: yellow green Lazzarelli
0.01
Transparent, Translucent, Transparent to translucent
1.565-1.602
-
Hexagonal
0.0040-0.0070
-
 
Waxy, Silky, Resinous, Greasy
-
0.03
TranslucentHerve Nicolas Lazzarelli
1.530-1.575
-
-
-9999
TranslucentHerve Nicolas Lazzarelli

Emerald and Williamsite Optic Character

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

Emerald and Williamsite Transparency

Similar to their colors, Emerald and Williamsite 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 while Emerald is in appearance.