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Hibschite and Tortoiseshell Optical Properties


Tortoiseshell and Hibschite Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Semitransparent   
Gemmological Tables (2004)   

Refractive Index
Not Available   
1.540-1.560   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d   
Not Available   

Birefringence
Not Available   
Not Available   

Clarity
TranslucentAnthony et al   
OpaqueUlrich Henn and Claudio C. Milisenda   

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Hibschite and Tortoiseshell Optic Character

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

Similar to their colors, Hibschite and Tortoiseshell 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, Hibschite is Semitransparent while Hibschite is Semitransparent in appearance.

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