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Williamsite and Realgar Optical Properties


Realgar and Williamsite Optical Properties


Optical Properties

Luster
Waxy, Silky, Resinous, Greasy   
Not Available   

Pleochroism
Not Available   
Nearly colorless to pale golden yellowAnthony et al   

Dispersion
Not Available   
Not Available   

Transparency
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)   
Gems   

Refractive Index
1.530-1.575   
2.538-2.704   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
Not Available   
0.166   

Clarity
TranslucentHerve Nicolas Lazzarelli   
Gems   

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Williamsite and Realgar Optic Character

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

Similar to their colors, Williamsite and Realgar 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, Williamsite is Blue Chart Gem Identification (2010) and TranslucentHerve Nicolas Lazzarelli while Williamsite is Blue Chart Gem Identification (2010) and TranslucentHerve Nicolas Lazzarelli in appearance.

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