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Transvaal Jade and Dioptase Optical Properties


Dioptase and Transvaal Jade Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Not Available   
Weak; dark emerald green   

Dispersion
0.03   
15
0.04   
13

Transparency
Gemmological Tables (2004)   
TranslucentHerve Nicolas Lazzarelli   

Refractive Index
Not Available   
1.644-1.720   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
Not Available   
0.051-0.053   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
TranslucentHerve Nicolas Lazzarelli   

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Transvaal Jade and Dioptase Optic Character

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

Similar to their colors, Transvaal Jade 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, Transvaal Jade is Gemmological Tables (2004) while Transvaal Jade is Gemmological Tables (2004) in appearance.

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