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Gedrite and Dioptase Optical Properties


Dioptase and Gedrite Optical Properties


Optical Properties

Luster
Fibrous, Vitreous   
Vitreous   

Pleochroism
Weak to moderate   
Weak; dark emerald green   

Dispersion
Not Available   
0.04   
13

Transparency
Transparent   
TranslucentHerve Nicolas Lazzarelli   

Refractive Index
1.625-1.718   
1.644-1.720   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma   
Trigonal   

Birefringence
Not Available   
0.051-0.053   

Clarity
Transparent   
TranslucentHerve Nicolas Lazzarelli   

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Gedrite and Dioptase Optic Character

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

Similar to their colors, Gedrite and Dioptase 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, Gedrite is Transparent while Gedrite is Transparent in appearance.

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