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Chalcedony and Periclase Optical Properties


Periclase and Chalcedony Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Not Available   

Dispersion
None   
Not Available   

Transparency
Translucent, Translucent to opaque   
TransparentWalter Schumann, Gemstones of the world (2001) More from other references   

Refractive Index
1.530-1.543   
1.735-1.738   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Isometric   

Birefringence
0.003-0.009   
Not Available   

Clarity
Translucent   
TransparentWalter Schumann   

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Chalcedony and Periclase Optic Character

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

Similar to their colors, Chalcedony and Periclase 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, Chalcedony is Translucent and Translucent to opaque while Chalcedony is Translucent and Translucent to opaque in appearance.

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